Steel structure assembly type supporting device and working method thereof

Abstract

The invention discloses a steel structure assembly type supporting device and a working method, solves the problem of low positioning precision of a supporting device in the prior art, and has the beneficial effects of realizing accurate positioning of a steel member at a horizontal position and meeting the splicing requirements of different inclination angles. Comprising multiple layers of standard knots which are sequentially spliced into a steel structure, at least two sets of lifting assemblies are arranged at the top end of the standard knot on the topmost layer and connected with a movable platform, and the lifting assemblies are adjusted to enable the movable platform to ascend and descend so as to achieve connection of spliced components in the horizontal direction. When the heights of the lifting assemblies are different, the movable platform inclines so as to facilitate connection of splicing components with different inclination angles, the movable platform comprises a base, an inner core is arranged in the base, a moving assembly is arranged between the inner core and the base so as to adjust the position of the inner core relative to the base, and a positioning assembly is arranged at the position of the inner core.

Description

Technical Field

[0001] The invention relates to the field of steel structure components, in particular to a steel structure assembled support device and a working method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Most of the components of steel structures are processed in the factory, then transported to the construction site, hoisted to high altitude by crane, and the components are welded, bolted or riveted to form an overall structure. However, in the process of transporting steel components from the processing plant to the construction site, the length of the components is not allowed to exceed 12 meters for the convenience of transportation. Therefore, extra-long steel components are divided into multiple sections for transportation, and then spliced ​​into complete components after being transported to the site. Considering the heavy weight of steel components and the high-altitude operations, temporary support devices are often set at the splicing points of the components as a construction platform for welding and assembly. Existing temporary support devices for construction are mostly made by construction units using steel sections.

[0004] There are several problems with the temporary support device:

[0005] (1) The height adjustment of the splicing point needs to be achieved by padding different numbers and thicknesses of steel or steel plates on the top of the support, which has poor accuracy and low efficiency;

[0006] (2) It is difficult to assemble components with different inclination requirements with existing supports;

[0007] (3) After the steel structure is spliced ​​and installed, when the support is removed and unloaded, in order to ensure the synchronization of the load sinking at different splicing points, it is necessary to use a jack to lift and unload, which is a cumbersome process;

[0008] (4) There is no foundation at the bottom of the temporary support. If it is directly supported on the foundation, it will cause a large amount of settlement, while if it is supported on the existing structure, it will affect the structural safety;

[0009] (5) The support heights vary, which makes it difficult to rotate and use, and the cost is high. Summary of the invention

[0010] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a steel structure assembled support device and a height-adjustable movable platform, which effectively replaces the steel plate set on the top of the support device and has higher adjustment accuracy and efficiency.

[0011] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0012] A steel structure assembly support device includes multiple layers of standard sections, which are assembled into a steel structure in sequence. At least two groups of lifting components are arranged on the top of the top standard section. The lifting components are connected to a movable platform. The lifting components are adjusted to make the movable platform rise and fall to achieve horizontal connection of assembled components. When the heights of the lifting components are different, the movable platform is tilted to facilitate the connection of assembled components with different inclination angles. The movable platform includes a base, an inner core is arranged in the base, a moving component is arranged between the inner core and the base to adjust the position of the inner core relative to the base, a positioning component is arranged at the inner core, and the positioning component can be placed on the inner side of the assembled component to achieve positioning of the assembled component.

[0013] As described above, a steel structure assembled support device, the inner core includes a first inner core, the movable component is arranged between the first inner core and the base, the first inner core is arranged hollow, and the second inner core is arranged in the hollow part of the first inner core, the second inner core is rotatable relative to the first inner core so that after the second inner core is rotated to a set angle, the central axis of the second inner core can be coaxially arranged with the central axis of the assembled component, and the side of the second inner core is fixed with the positioning component, so that the inclination angle of the first inner core and the base can be adapted to the surface where the assembled component is located to support the surface where the assembled component is located, and after the second inner core is rotated relative to the first inner core, the positioning component can enter the interior of the assembled component for positioning the assembled component.

[0014] As described above, a steel structure assembled support device, the positioning component includes two relatively arranged positioning plates, the first screw rod passes through the positioning plates and cooperates with the positioning plates through a threaded structure, the positioning plate moves relative to the first screw rod to adjust the distance between the two positioning plates so that the two positioning plates can enter the interior of the assembled component, the distance between the two positioning plates is used to make the first screw rod L-shaped, the shorter side of the first screw rod is fixed to the surface of the second inner core, the longer side of the first screw rod is set at a distance from the second inner core, and the length of the positioning plate is less than or equal to the radius of the second inner core.

[0015] As described above, a steel structure assembled support device, the moving component is a plurality of second screws passing through the base and connected to the first inner core, some of the second screws are connected to the second inner core, each second screw is respectively arranged along the radial direction of the base or perpendicular to the side of the base, some of the second screws pass through the first inner core and are movably connected to the second inner core, and the first inner core is driven to move inside the base by the rotation of the second screw relative to the base, and can be moved in multiple directions separately.

[0016] In a steel structure assembled support device as described above, the outer shape of the first inner core is matched with the inner shape of the base, the inner shape of the first inner core is circular, and the shape of the second inner core is matched with the inner shape of the first inner core, so that the second inner core is also circular, which facilitates the rotation of the second inner core relative to the first inner core.

[0017] In the steel structure assembled support device as described above, columns are respectively arranged at each corner of the base, the columns correspond to the lifting components one by one, and the columns are hingedly connected to the corresponding lifting components, so that the movable platform can be tilted relative to the topmost standard section.

[0018] In the steel structure assembled support device as described above, the standard section is a cubic component composed of a plurality of cross bars and vertical bars, the vertical bars of the top standard section are hollow, and one end of the lifting assembly is inserted into the hollow vertical bar;

[0019] The lifting component is a third screw rod, which is connected to the inside of the vertical pole through a threaded structure. The third screw rod has a rotating handle arranged in an annular direction. The height of the third screw rod relative to the topmost standard section can be adjusted by rotating the rotating handle.

[0020] In the steel structure assembled support device as described above, a support plate is provided on the side of the bottom of the standard section at the bottom layer, and the support plate can be placed on the side of the standard section and can be unfolded relative to the standard section. After the support plate is unfolded relative to the standard section at the bottom layer, the support plate and the bottom of the standard section at the bottom layer are located on the same plane and are in full contact with the ground, which can effectively increase the bottom support area;

[0021] To further ensure the strength of the bottom support, a collar is provided on one side of the support plate away from the standard section, one end of the support rod can be inserted into the collar, and a recess is provided on the other end of the support rod, which can be against the standard section.

[0022] In the steel structure assembled support device as described above, the heights of the standard sections at each layer are the same, hollow parts are arranged on the upper side and / or the lower side of each standard section, and the connecting parts are arranged through the hollow parts of two adjacent layers.

[0023] In a second aspect, the present invention further discloses a working method of a steel structure assembled support device, including the following contents:

[0024] Determine the number and location of the steel structure assembled support devices;

[0025] Determine the number of standard sections according to the height of the assembled components;

[0026] According to the marking position, the standard sections are assembled from low to high. A lifting component is set on the top of the top standard section, and the lifting component is connected to the movable platform;

[0027] According to the position of the assembled component, the position of the inner core is adjusted by moving the component so that the position of the positioning component can be placed inside the assembled component;

[0028] According to the assembly positions of the assembled components in the horizontal direction, the height of the lifting assembly is adjusted so that the assembled components can be connected in the horizontal direction through the movable platform;

[0029] According to the tilt angle of the assembled components, the height of the lifting assembly is adjusted so that the height of the lifting assembly is different to adjust the tilt angle of the movable platform;

[0030] The assembled components are hoisted and placed on the movable platform, and the assembled components are positioned by the positioning components;

[0031] The assembled components are assembled. After the assembled components are installed, the heights of all the steel structure assembled support devices are simultaneously lowered so that the movable platform is separated from the assembled components.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1) The support device of the present invention includes multiple layers of standard sections, which are assembled into a steel structure. A lifting assembly is arranged on the top of the top standard section. The lifting assembly can adjust the height of the movable platform. The height of the movable platform can be adjusted according to the surface where the assembled components are located. There is no need to add different numbers and thicknesses of steel or steel plates to fill the space between the support device and the surface where the assembled components are located, so that the movable platform is fitted with the surface where the assembled components are located, and the adjustment accuracy and efficiency are high.

[0034] The setting of multiple lifting components can adjust the heights of different lifting components, so that the movable platform can be tilted, and the different tilt angles of the movable platform can be adjusted to ensure that the movable platform is closely fitted with the surface where the assembled components are located, and the surfaces where the assembled components are located with different tilt angles can be supported;

[0035] When multiple supporting devices support a supporting member (here the supporting member includes multiple assembled members, the assembled members are usually pipelines, and the surface where the pipelines are located is the connecting surface between the pipelines), through the setting of the lifting component, multiple supporting devices can be lowered and unloaded at the same time, without the need for jacking and then unloading, which greatly facilitates construction and improves construction efficiency.

[0036] 2) In the present invention, a movable component is arranged between the base and the inner core. By adjusting the movable component, the distance of the first inner core relative to the base can be adjusted, and the second inner core can be rotated relative to the first inner core, so that the central axis of the second inner core can be arranged coaxially with the central axis of the assembled component, and the positioning component at the movable platform can be placed on the inner side of the assembled component to ensure that the positioning component accurately positions the assembled component.

[0037] 3) The positioning assembly structure of the present invention is reasonably arranged. The positioning assembly is provided with two positioning plates. The positioning plates move relative to the first screw to adjust the distance between the two positioning plates so that the two positioning plates can enter the interior of the assembled component.

[0038] 4) In the present invention, a support plate is provided on the side of the bottom of the standard section at the bottom layer. After the support plate is unfolded relative to the standard section at the bottom layer, the support plate and the bottom of the standard section at the bottom layer are located on the same plane and are in full contact with the ground, which can effectively increase the bottom support area. The stability of the support plate is ensured by the setting of the support rod, avoiding a large settlement at the foundation and ensuring the safety of the overall structure.

[0039] 5) The present invention provides multiple layers of standard sections for easy installation and disassembly. Each standard section is universal, convenient for turnover and reduced cost. A support plate is provided at the bottom of the lowest standard section, which can increase the area between the support device and the foundation and reduce settlement. The overall structure can be supported by being fitted with the surface of the assembled component through a movable platform. The movement of the first inner core and the second inner core can be achieved through a moving assembly. The second inner core can be rotated relative to the first inner core so that the second inner core can be accurately fitted with the end face of the assembled component. The assembled component can be accurately positioned through the positioning assembly to ensure the accuracy and precision of the installation of the assembled component. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0041] Figure 1 It is a schematic diagram of a standard section in a steel structure assembled support device according to one or more embodiments of the present invention.

[0042] Figure 2 It is a schematic diagram of connecting two adjacent layers of standard sections of a steel structure assembled support device according to one or more embodiments of the present invention.

[0043] Figure 3 It is a schematic diagram of an unfolded support plate provided at the bottom of a standard section in a steel structure assembled support device according to one or more embodiments of the present invention.

[0044] Figure 4 It is a schematic diagram of a support plate arranged at the bottom of a standard section in a steel structure assembled support device according to one or more embodiments of the present invention after being retracted.

[0045] Figure 5 It is a schematic diagram of the arrangement of a third screw rod in a steel structure assembled support device according to one or more embodiments of the present invention.

[0046] Figure 6 It is a schematic diagram of a movable platform in a steel structure assembled support device according to one or more embodiments of the present invention.

[0047] Figure 7 It is a schematic diagram of a movable platform in a horizontal state in a steel structure assembled support device according to one or more embodiments of the present invention.

[0048] Figure 8 It is a schematic diagram of a movable platform in a steel structure assembled support device according to one or more embodiments of the present invention when it is tilted.

[0049] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0050] Wherein: 1. upper horizontal rod, 2. lower horizontal rod, 3. oblique rod, 4. vertical rod, 5. hollow part, 6. bolt, 7. nut, 8. central support plate, 9. support plate, 10. rotating shaft, 11. support rod, 12. collar, 13. third screw rod, 14. rotating handle, 15. ball joint support, 16. ball joint, 17. column, 18. base, 19. gap, 20. first inner core, 21. second inner core, 22. second screw rod, 23. positioning plate, 24. first screw rod. DETAILED DESCRIPTION

[0051] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0053] As introduced in the background technology, the supporting device used to support the assembled components in the prior art has the problem of low positioning accuracy, which makes the installation efficiency of the assembled components low. In order to solve the above technical problems, the present invention proposes a steel structure assembled support device.

[0054] In a typical embodiment of the present invention, reference is made to Figure 1As shown, a steel structure assembled support device includes multiple layers of standard sections, which are assembled into a steel structure in sequence. At least two sets of lifting components are arranged on the top of the topmost standard section. The lifting components are connected to a movable platform. The lifting components are adjusted to make the movable platform rise and fall to realize the connection of the assembled components in the horizontal direction. When the heights of the lifting components are different, the movable platform is tilted to facilitate the connection of the assembled components with different inclination angles. The movable platform includes a base 18, an inner core is arranged in the base, a moving component is arranged between the inner core and the base to adjust the position of the inner core relative to the base, and a positioning component is arranged at the inner core. The positioning component can be placed on the inner side of the assembled components to realize the positioning of the assembled components.

[0055] Specifically, the standard section is a cubic component composed of multiple horizontal bars and vertical bars. Four upper horizontal bars 1, four lower horizontal bars 2 and four vertical bars 4 are used to form the standard section. Diagonal bars 3 are arranged on the side of the standard section to increase the stability of the standard section. Various cross-section steels can be selected for each horizontal bar. The vertical bars, especially the vertical bars of the topmost standard section, are hollow (steel pipes can be selected), so that one end of the lifting assembly is inserted into the hollow vertical bar.

[0056] It is easy to understand that the height of each standard section is the same. Figure 2 As shown, a hollow part 5 is arranged outside the upper side and / or lower side of each standard section, and a connecting part such as a bolt 6 (stud) is arranged through the hollow parts of two adjacent layers, and both ends of the bolt are locked with nuts 7 respectively. The hollow part can be a steel pipe, and the length of the hollow part is less than the length of the vertical pole. The hollow part is welded to the upper side and the lower side of each vertical pole.

[0057] Among them, the number of intermediate standard sections is determined according to the clearance height from the assembly point to the ground (or floor), ensuring that the clearance height from the top standard section to the assembly point is less than one standard section height, and the remaining clearance is positioned and supported by the height-adjustable lifting component.

[0058] refer to Figure 3 As shown, a central support plate 8 is fixed at the center of the bottom of the lowest standard section, and a support plate 9 is arranged on the side of the bottom of the lowest standard section. Specifically, rotating shafts 10 are respectively installed at the four lower horizontal rods of the lowest standard section, and the support plate 9 is connected to the outside from the rotating shaft. The support plate is rotatable relative to the lower horizontal rod. The support plate can be specifically selected from a steel plate, and the surrounding areas can be rotated and folded to be tightly attached to the four sides of the lowest standard section during transportation and stacking. When encountering a soft soil foundation or a weak floor and it is necessary to increase the foundation area, the surrounding supports are rotated open, and the support plate and the bottom of the lowest standard section are located on the same plane and are in full contact with the ground, which can effectively increase the bottom support area.

[0059] To further ensure the strength of the bottom support, a ring 12 is fixed to the side of the support plate away from the standard section. One end of the support rod 11 can be inserted into the ring 12, and a recess is set at the other end of the support rod. The upper horizontal rod of the lowest standard section can be inserted into the recess of the support rod.

[0060] In this embodiment, the lifting component is a third screw rod 13, which is connected to the inside of the vertical pole through a threaded structure. A rotating handle 14 is arranged circumferentially on the third screw rod, and the height of the third screw rod relative to the topmost standard section can be adjusted by rotating the rotating handle 14.

[0061] refer to Figure 5 As shown, a third screw is inserted into each of the four uprights 4 of the topmost standard section. The height of the third screw is usually less than the height of the standard section. The rotating handle cooperates with the third screw through a threaded structure. A ball joint base 15 is arranged on the top of the third screw, and a ball joint 16 is arranged at the column of the movable platform. The ball joint base includes two halves, and the ball joint is fixed by screws after being inserted into the ball joint base. The height of each third screw can be adjusted by rotating the handle, and the height of the movable platform can be adjusted by the four third screws to facilitate the connection of horizontal components. Moreover, the height difference of different third screws can be adjusted to make the movable platform produce an inclination angle, so as to realize the connection of components with different inclination angles. At the same time, due to the fixed height limit of the standard section, the adjustment of the precise elevation less than the remaining clearance of the standard section height is also achieved by adjusting the third screw.

[0062] refer to Figure 6 As shown, the base of the movable platform is a cubic base, and its plane size is slightly larger than that of the standard section. Columns 17 are respectively arranged at the four corners of the lower surface of the base. The columns 17 correspond to the third screw rods one by one and are connected by ball joints, so that the movable platform can be tilted relative to the topmost standard section.

[0063] Specifically, a ball joint 16 is provided at the bottom of the column 17, a groove is machined on the upper surface of the base 18, a first inner core is built in, a moving assembly is provided between the first inner core and the base, and the bottom surface of the first inner core can slide horizontally in the groove to achieve accurate positioning of the steel member. The gap 19 between the outer frame of the base 18 and the first inner core is adjustable, and deviation is allowed. A rotatable second screw 22 is provided on the four outer frames of the base 18, and the position of the first inner core in the plane can be accurately positioned by rotating the second screw 22.

[0064] The first inner core 20 is hollow, and a through hole communicating with the hollow part of the first inner core is also arranged at the groove of the base. The second inner core 21 is arranged in the hollow part of the first inner core 20. The second inner core 21 is rotatable relative to the first inner core 20 so that after the second inner core is rotated to a set angle, the central axis of the second inner core can be coaxially arranged with the central axis of the assembled component to realize the connection of assembled components (steel components) in any direction. The side of the second inner core is fixed with a positioning component, so that the inclination angle of the first inner core and the base can be adapted to the surface where the assembled component is located to support the surface where the assembled component is located. After the second inner core rotates relative to the first inner core, the positioning component can enter the interior of the assembled component for positioning the assembled component. The assembled component can be positioned at any angle by the positioning component. After positioning, the assembly component can be connected with other components.

[0065] Specifically, the positioning assembly includes two relatively arranged positioning plates 23, the first screw passes through the positioning plates 23 and cooperates with the positioning plates through a threaded structure, the positioning plates move relative to the first screw to adjust the distance between the two positioning plates so that the two positioning plates can enter the interior of the assembled component, and the distance between the two positioning plates is used to make the first screw 24 L-shaped, the shorter side of the first screw 24 is fixed to the surface of the second inner core, and the longer side of the first screw is set at a distance from the second inner core, and the length of the positioning plate is less than or equal to the radius of the second inner core; the two positioning plates are arranged parallel to each other, and the two first screws can be arranged in the same plane.

[0066] It should be noted that the moving component is a plurality of second screws that pass through the base and are connected to the first inner core, specifically four screws. Some of the second screws are connected to the second inner core, and each second screw is arranged perpendicular to the side of the base. The two coaxially arranged second screws pass through the first inner core and are movably connected to the second inner core. The first inner core is driven to move inside the base by the rotation of the second screw relative to the base, and can be moved in multiple directions separately. Because of the setting of the second screw thread structure, after the second inner core rotates relative to the first inner core, the second screw is not rotated, thereby ensuring the position of the second inner core after rotation.

[0067] In addition, the outer shape of the first inner core 20 is adapted to the inner shape of the base, and the inner shape of the first inner core is circular. Specifically, the first inner core is a square inner core, and the shape of the second inner core is adapted to the inner shape of the first inner core. In this way, the second inner core 21 is also circular. The circular inner core facilitates the rotation of the second inner core relative to the first inner core, and the thickness of the first inner core and the second inner core can be the same.

[0068] It is easy to understand that this embodiment also discloses a working method of a steel structure assembled support device, including the following contents:

[0069] Estimate the number of standard sections and the laying area of ​​the foundation steel plate: Estimate the number of standard sections based on the height of the assembly position, the height of the standard section, and the height of the movable platform and the limit steel plate. The height difference that is less than one standard section can be compensated and adjusted by the lifting components; Estimate the laying area of ​​the foundation steel plate required based on the foundation bearing capacity or floor bearing capacity of the support;

[0070] Positioning and laying out of the support device: Determine the center point of the lowest standard node and the outline of the steel plate foundation according to the horizontal position of the splicing point, and draw ink lines on the ground or floor;

[0071] According to the marked position, place the lowest standard section, rotate and unfold the support plate, and use the support rod to support the horizontal rod on the lowest standard section and the collar on the outer edge of the support plate to fix and transmit the steel plate. Assemble the standard sections from low to high. After correcting the plane position and verticality, align the upper hollow part of the lower standard section and the upper hollow part of the standard section, insert the bolts, and tighten the two ends with nuts. Set the lifting assembly on the top of the top standard section, which is connected to the movable platform. The design height of the third screw is based on the bottom elevation of the spliced ​​component minus the height of the movable platform, ball joint and column.

[0072] According to the position of the assembled component, the position of the inner core is adjusted by moving the component so that the position of the positioning component can be placed inside the assembled component;

[0073] In order to accurately position the splicing components, it is necessary to adjust the plane position of the first inner core and the rotation angle of the second inner core of the movable platform. According to the assembly position of the assembled components in the horizontal direction, the height of the lifting assembly is adjusted so that the assembled components can be connected in the horizontal direction through the movable platform; according to the inclination angle of the assembled components, the height of the lifting assembly is adjusted so that the height of the lifting assembly is different to adjust the inclination angle of the movable platform;

[0074] Specifically, a total station is set up in two directions parallel and perpendicular to a side length of the standard section, and the coordinates of the assembled component along the main axis direction (east-west and north-south) are projected onto the outer side of the movable platform by means of a laser target. The second screw in the horizontal direction of the movable platform is adjusted to align the central axis of the first inner core with the position of the laser target. Similarly, the second inner core is rotated to align the second inner core with the axis direction of the assembled component;

[0075] The assembly component is hoisted and placed on the movable platform by a crane, and the first screw is adjusted so that the positioning assembly clamps one end of the assembly component to position the assembly component;

[0076] After the assembly components are installed, the heights of all the steel structure assembly support devices are slowly lowered at the same time, so that the movable platform is separated from the assembly components;

[0077] The movable platform, lifting components and standard sections of each layer are gradually dismantled from top to bottom, avoiding the complicated operation of lifting and unloading with jacks.

[0078] The above description is only a preferred embodiment of the present invention and is 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 steel structure assembled support device, It is characterized in that It includes multiple layers of standard sections, which are assembled into a steel structure in sequence. At least two sets of lifting components are arranged on the top of the top standard section. The lifting components are connected to a movable platform. The lifting components are adjusted to make the movable platform rise and fall so as to realize the connection of the assembled components in the horizontal direction. When the heights of the lifting components are different, the movable platform is tilted to facilitate the connection of the assembled components with different inclination angles. The movable platform includes a base, an inner core is arranged in the base, a moving component is arranged between the inner core and the base to adjust the position of the inner core relative to the base, a positioning component is arranged at the inner core, and the positioning component can be placed on the inner side of the assembled components to realize the positioning of the assembled components.

2. A steel structure assembled support device according to claim 1, It is characterized in that The inner core includes a first inner core, the movable component is arranged between the first inner core and the base, the first inner core is arranged hollow, the second inner core is arranged in the hollow part of the first inner core, the second inner core is rotatable relative to the first inner core so that the central axis of the second inner core can be coaxially arranged with the central axis of the assembled component after the second inner core is rotated to a set angle, and the positioning component is fixed on the side of the second inner core.

3. A steel structure assembled support device according to claim 2, It is characterized in that The positioning assembly includes two positioning plates arranged opposite to each other, a first screw rod passes through the positioning plates and cooperates with the positioning plates through a threaded structure, and the positioning plates move relative to the first screw rod to adjust the distance between the two positioning plates so that the two positioning plates can enter the interior of the assembled component.

4. A steel structure assembled support device according to claim 2, It is characterized in that The moving component is a plurality of second screws that pass through the base and are connected to the first inner core, some of the second screws are connected to the second inner core, and each second screw is arranged along the radial direction of the base or perpendicular to the side of the base, and some of the second screws pass through the first inner core and are movably connected to the second inner core.

5. A steel structure assembled support device according to claim 2, It is characterized in that The outer shape of the first inner core matches the inner shape of the base, the inner shape of the first inner core is circular, and the shape of the second inner core matches the inner shape of the first inner core.

6. A steel structure assembled support device according to claim 1, It is characterized in that A column is arranged at each corner of the base, and the columns correspond to the lifting components one by one, and the columns are hingedly connected to the corresponding lifting components.

7. A steel structure assembled support device according to claim 1, It is characterized in that The standard section is a cubic component composed of multiple horizontal bars and vertical bars. The vertical bars of the top standard section are hollow, and one end of the lifting assembly is inserted into the hollow vertical bar. The lifting component is a third screw rod, which is connected to the inside of the vertical pole through a threaded structure. The third screw rod has a rotating handle arranged in an annular direction. The height of the third screw rod relative to the topmost standard section can be adjusted by rotating the rotating handle.

8. A steel structure assembled support device according to claim 1, It is characterized in that A support plate is provided on the side of the bottom of the standard section at the bottom layer, and the support plate can be placed on the side of the standard section and can be unfolded relative to the standard section; A collar is arranged on one side of the support plate away from the standard section, one end of the support rod can be inserted into the collar, and a recess is arranged on the other end of the support rod, which can abut against the standard section.

9. The steel structure assembled support device according to claim 1, It is characterized in that The heights of the standard sections at each layer are the same, a hollow piece is arranged on the upper side and / or the lower side of each standard section, and a connecting piece is arranged through the hollow pieces of two adjacent layers.

10. A working method of a steel structure assembled support device according to any one of claims 1 to 9, It is characterized in that It includes the following: Determine the number and location of the steel structure assembled support devices; Determine the number of standard sections according to the height of the assembled components; According to the marking position, the standard sections are assembled from low to high. A lifting component is set on the top of the top standard section, and the lifting component is connected to the movable platform; According to the position of the assembled component, the position of the inner core is adjusted by moving the component so that the position of the positioning component can be placed inside the assembled component; According to the assembly positions of the assembled components in the horizontal direction, the height of the lifting assembly is adjusted so that the assembled components can be connected in the horizontal direction through the movable platform; According to the tilt angle of the assembled components, the height of the lifting assembly is adjusted so that the height of the lifting assembly is different to adjust the tilt angle of the movable platform; The assembled components are hoisted and placed on the movable platform, and the assembled components are positioned by the positioning components; The assembled components are assembled. After the assembled components are installed, the heights of all the steel structure assembled support devices are simultaneously lowered so that the movable platform is separated from the assembled components.

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