Novel steel structure conversion layer davit mounting device and method

Abstract

The invention relates to the technical field of building engineering construction, in particular to a novel steel structure conversion layer davit mounting device and method.The novel steel structure conversion layer davit mounting device comprises a steel latticed column, a foundation bolt, a lifting and unloading mechanism, a davit, a connecting bolt and a roof steel beam; the bottom end of the steel latticed column is detachably and fixedly installed on the foundation bolt, the fixed end of the lifting and unloading mechanism is detachably and fixedly installed at the top end of the steel latticed column, and the bottom end of the hanging column is detachably and fixedly installed at the top of the lifting end of the lifting and unloading mechanism. The top end of the davit is fixedly installed at the bottom end of the roof steel beam through a connecting bolt. The steel structure conversion layer davit installation device and method are convenient and safe to install.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering construction, and in particular to a novel steel structure conversion layer suspension column installation device and method. Background Art

[0002] With the continuous development of the national economic level, the public has a higher demand for the aesthetics of buildings. Steel structure projects mostly use suspended ceilings for interior decoration, so the construction of the transfer layer has become a problem that must be solved at present, which puts forward higher requirements and challenges for the installation of steel structure components.

[0003] According to Article 7.1.14 of the "Standard for Quality Acceptance of Building Decoration and Renovation Projects" (GB50210-2018), "when the upper part of the hanger is a grid, steel roof truss or the length of the hanger is greater than 2500mm, a steel structure transfer layer should be provided", so the length of the steel structure transfer layer hanger column is greater than 2.5m. The hanger column is long and heavy. The more common construction method for installing the hanger column is to start hoisting after the roof steel beam is installed. Nowadays, the span of the steel structure monomer is constantly increasing, and the flange plate of the roof steel beam is thickened and enlarged accordingly. The cross-section of the hanger column is smaller than the roof steel beam, which is not conducive to the hoisting of the hanger column and the installation of bolts, which brings great difficulties to the hoisting of the hanger column. Summary of the invention

[0004] The purpose of the present invention is to provide a novel steel structure conversion layer suspender installation device and method to solve the technical problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A novel steel structure conversion layer suspension column installation device comprises: steel lattice columns, anchor bolts, a lifting and unloading mechanism, suspension columns, connecting bolts and roof steel beams, wherein the anchor bolts are pre-buried in the indoor ground and are located directly below the roof steel beams, the bottom end of the steel lattice column is detachably fixedly mounted on the anchor bolts, the top end of the steel lattice column is detachably fixedly mounted with the fixed end of the lifting and unloading mechanism, the top of the lifting and unloading mechanism is detachably fixedly mounted with the bottom end of the suspension column, and the top end of the suspension column is fixedly mounted on the bottom end of the roof steel beam via connecting bolts.

[0007] Furthermore, two connecting plates are symmetrically fixedly installed at the upper and lower ends of the steel lattice column, and a plurality of bolt holes are evenly opened on the connecting plates.

[0008] Furthermore, the anchor bolt is L-shaped, the lower part of the anchor bolt is embedded in the ground indoors, the upper threaded section of the anchor bolt extends out of the ground, and a plurality of anchor bolts are evenly arranged, and the upper threaded sections of the plurality of anchor bolts respectively penetrate through a plurality of bolt holes and are fixedly connected to the lower connecting plate through a plurality of nuts.

[0009] Furthermore, the lifting and unloading mechanism includes: a rectangular support, a lower wedge block, a top seat and an upper wedge block. The bottom end of the rectangular support is detachably fixed on a plurality of bolt holes of the upper connecting plate of the steel lattice column by a plurality of fixing bolts. A plurality of lower wedge blocks are evenly arranged on the top of the rectangular support. An upper wedge block corresponding to and wedge-shaped to the plurality of lower wedge blocks is arranged on the bottom end of the top seat. The top end of the top seat is detachably fixed on the bottom end of the hanging column by a plurality of fixing bolts. A driving mechanism is arranged inside the rectangular support to drive the plurality of lower wedge blocks to move radially toward or away from each other with the center of the rectangular support as the center.

[0010] Furthermore, the driving mechanism includes: a truncated table, a driving plate, a sliding column, a limiting slider, a driving gear, a bearing and a driving shaft. The cross section of the rectangular support is a square. A circular cavity is provided inside the rectangular support. A cross-shaped slide groove is provided at the top of the rectangular support. A cross slide hole is provided between the cross-shaped slide groove and the circular cavity. The truncated table is fixedly connected to the middle of the bottom end of the circular cavity. The driving plate is rotatably connected to the top of the truncated table with its axis as the center of the circle. A vortex-shaped slide groove is provided at the top of the driving plate. Four lower wedges are provided. The four lower wedge blocks are distributed in a circular array and are slidably connected to the four ends of the cross-shaped slide groove. The inner side of the bottom end of the lower wedge block is fixedly connected to a limit slider. The four limit sliders are slidably connected to the four ends of the cross slide hole. The bottom end of the limit slider is fixedly connected to a sliding column. The four sliding columns are embedded and slidably connected in the vortex slide groove. Four driving gears are evenly meshed at the bottom of the driving disk. The outer end of the driving gear is fixedly connected to a driving shaft. The driving shaft is rotatably connected to the inner wall of the rectangular support through a bearing, and the driving shaft passes through the outside of the rectangular support.

[0011] Furthermore, a rotating circular groove is provided at the bottom end of the driving disk, and the top end of the truncated table is embedded and rotatably connected in the rotating circular groove. A helical tooth groove is provided on the side wall of the bottom of the driving disk, and the driving gear is a helical gear, which meshes with the helical tooth groove. A through hole is provided in the middle of each of the four sides of the rectangular support, and the driving shaft movably passes through the outside of the through hole, and a hexagonal groove is provided at the outer end of the driving shaft.

[0012] Furthermore, a linear downward slope sloping downward from outside to inside is provided at the top end of the lower wedge block, and a linear upward slope sloping downward from outside to inside is provided at the bottom end of the upper wedge block, and the linear downward slope is wedge-shapedly connected to the linear upper slope.

[0013] A novel steel structure conversion layer suspender installation method, using a novel steel structure conversion layer suspender installation device, comprises the following steps:

[0014] Step 1: Measure and lay out the position of the hanging column according to the design documents and calibrate it again; make the anchor bolt clamping die and embed the anchor bolts according to the position and elevation of the hanging column;

[0015] Step 2: Process and manufacture the lattice column according to the lattice column drawing, reserve connection plates at both ends of the lattice column, and open bolt holes. When processing the hanging column, reserve connection plates at the corresponding positions and open bolt holes;

[0016] Step 3: On the ground, use bolts to connect the lattice column and the rectangular support of the lifting and unloading mechanism; use bolts to connect the hanging column and the top seat of the lifting and unloading mechanism;

[0017] Step 4: hoist the lattice column and the rectangular support as a whole to the position of the anchor bolts and install the bolts to fix them. Hoist the hanging column and the top seat to the top of the rectangular support and place them. Re-measure the elevation and verticality. If there is any error, adjust it in time.

[0018] Step 5: Hoist the roof steel beams;

[0019] Step 6: One construction worker uses a climbing device to observe from the top of the sling, while another construction worker operates the lifting and unloading mechanism to continuously lift the sling to the connection point of the steel beam. The lifting stops immediately after the two are tightly fitted.

[0020] Step 7: Connect the roof steel beams to the hanging column bolts, and the construction process is all done at eye level;

[0021] Step 8: One construction worker uses climbing equipment to reach the connection between the hanging column and the top seat, and removes the connecting bolts between the hanging column and the top seat. Another construction worker operates the unloading device to reset it, lifts out the lattice column, and cuts off the anchor bolts to complete the installation of this hanging column.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention completes the erection of the hanging columns before the roof steel beams are hoisted, and the hanging columns are immediately connected after the roof steel beams are installed, and then the lattice columns are removed. The whole process is fast to install, simple to operate, and has low safety risks, thus avoiding the safety risks of looking up in the existing construction methods. It provides a simple, reasonable, and safe installation method for fixing large-size steel beams and small-section hanging columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a novel steel structure conversion layer suspender installation device of the present invention;

[0025] Figure 2 This is a structural view of a novel steel structure conversion layer suspender installation device of the present invention;

[0026] Figure 3 This is a bottom perspective view of the novel steel structure conversion layer suspender installation device of the present invention;

[0027] Figure 4It is a transverse longitudinal section view of the novel steel structure conversion layer suspender installation device at the lifting and unloading mechanism of the present invention;

[0028] Figure 5 It is a cross-sectional view of the novel steel structure conversion layer suspender installation device at the driving plate in the present invention.

[0029] The numbers in the accompanying drawings are: 1-steel lattice column, 2-anchor bolt, 3-lifting and unloading mechanism, 301-rectangular support, 3011-circular cavity, 3012-cross slide, 3013-cross slide hole, 302-round table, 303-driving plate, 3031-vortex slide, 304-sliding column, 305-limiting slider, 306-lower wedge, 307-driving gear, 308-bearing, 309-driving shaft, 310-top seat, 311-upper wedge, 4-hanging column, 5-connecting bolt, 6-roof steel beam. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] See also Figures 1 to 5 As shown, a novel steel structure conversion layer suspension column installation device comprises: a steel lattice column 1, an anchor bolt 2, a lifting and unloading mechanism 3, a suspension column 4, a connecting bolt 5 and a roof steel beam 6. The anchor bolt 2 is pre-buried in the ground indoors and is located directly below the roof steel beam 6. The bottom end of the steel lattice column 1 is detachably fixedly mounted on the anchor bolt 2, the top end of the steel lattice column 1 is detachably fixedly mounted with the fixed end of the lifting and unloading mechanism 3, the top of the lifting and unloading end of the lifting and unloading mechanism 3 is detachably fixedly mounted with the bottom end of the suspension column 4, and the top end of the suspension column 4 is fixedly mounted on the bottom end of the roof steel beam 6 through the connecting bolt 5.

[0032] In this embodiment, two connecting plates are symmetrically fixedly installed at the upper and lower ends of the steel lattice column 1, and a number of bolt holes are evenly opened on the connecting plates; the anchor bolts 2 are L-shaped, the lower part of the anchor bolts 2 is pre-buried in the ground indoors, and the upper threaded section of the anchor bolts 2 extends out of the ground. A number of anchor bolts 2 are evenly arranged, and the upper threaded sections of the several anchor bolts 2 respectively penetrate the several bolt holes and are fixedly connected to the lower connecting plate through a number of nuts.

[0033] In this embodiment, the lifting and unloading mechanism 3 includes: a rectangular support 301, a lower wedge block 306, a top seat 310 and an upper wedge block 311. The bottom end of the rectangular support 301 is detachably fixedly mounted on a plurality of bolt holes of the upper connecting plate of the steel lattice column 1 by a plurality of fixing bolts. A plurality of lower wedge blocks 306 are evenly arranged on the top of the rectangular support 301. An upper wedge block 311 corresponding to and wedge-shaped to the plurality of lower wedge blocks 306 is arranged at the bottom end of the top seat 310. The top end of the top seat 310 is detachably fixedly mounted on the bottom end of the suspension column 4 by a plurality of fixing bolts. The interior of the rectangular support 301 is provided with a device for driving the plurality of lower wedge blocks 306 to radially rotate with the center of the rectangular support 301 as the center. The driving mechanism comprises: a truncated table 302, a driving disc 303, a sliding column 304, a limiting slider 305, a driving gear 307, a bearing 308 and a driving shaft 309. The cross section of the rectangular support 301 is square. A circular cavity 3011 is provided inside the rectangular support 301. A cross-shaped slide groove 3012 is provided at the top of the rectangular support 301. A cross slide hole 3013 is provided between the cross-shaped slide groove 3012 and the circular cavity 3011. The truncated table 302 is fixedly connected to the middle of the bottom end of the circular cavity 3011. The driving disc 303 is connected to the top of the truncated table 302 by rotating with its axis as the center of the circle. A vortex slide hole 3013 is provided at the top of the driving disc 303. The groove 3031 is provided with four lower wedge blocks 306, which are distributed in a circular array and are respectively slidably connected to the four ends of the cross-shaped slide groove 3012. The inner side of the bottom end of the lower wedge block 306 is fixedly connected to the limit slider 305, and the four limit sliders 305 are respectively slidably connected to the four ends of the cross slide hole 3013. The bottom end of the limit slider 305 is fixedly connected to the slide column 304, and the four slide columns 304 are all embedded and slidably connected in the vortex-shaped slide groove 3031. Four driving gears 307 are evenly meshed at the bottom of the driving disk 303, and the outer end of the driving gear 307 is fixedly connected to the driving shaft 309. The driving shaft 309 is rotatably connected to the rectangular support 301 through the bearing 308. The driving shaft 309 is connected to the outside of the rectangular support 301; a rotating circular groove is provided at the bottom of the driving disk 303, and the top of the truncated table 302 is embedded and rotatably connected in the rotating circular groove. A helical tooth groove is provided on the side wall of the bottom of the driving disk 303, and the driving gear 307 is a helical gear, and the driving gear 307 meshes with the helical tooth groove. A through hole is provided in the middle of the four sides of the rectangular support 301, and the driving shaft 309 movably passes through the outside of the through hole. A hexagonal groove is provided at the outer end of the driving shaft 309; a linear downward slope is provided at the top of the lower wedge block 306, and a linear upper slope is provided at the bottom of the upper wedge block 311, which is inclined downward from the outside to the inside, and the linear lower slope is wedge-shapedly connected with the linear upper slope;By inserting a hexagonal wrench into any one of the hexagonal grooves on the driving shaft 309, and inserting the handle of the hexagonal wrench into the sleeve and rotating it clockwise or counterclockwise, the driving gear 307 can be driven to rotate, and the driving gear 307 drives the driving disk 303 to rotate, and the driving disk 303 drives the four sliding columns 304 to move toward or away from each other, and then the four lower wedge blocks 306 are driven to move toward or away from each other through the four limit sliders 305, and the four upper wedge blocks 311 and the top seat 310 are driven to move upward or downward, thereby realizing the installation of the suspension column 4. ;

[0034] A novel steel structure conversion layer suspender column installation method, using the novel steel structure conversion layer suspender column installation device, comprises the following steps:

[0035] Step 1: Measure and lay out the position of the hanging column according to the design documents, and calibrate it again to ensure accurate positioning to avoid affecting the connection between the hanging column and the steel beam; make a foundation bolt clamp (the clamp can be reused), and embed the foundation bolt according to the position and elevation of the hanging column;

[0036] Step 2: Due to the heavy weight of the hanging column, the design of the lattice column needs to consider the bearing capacity while trying to reduce the weight of the lattice column itself to facilitate construction and save costs; the lattice column is processed and manufactured according to the lattice column drawing, and connection plates are reserved at both ends of the lattice column, and bolt holes are opened. When processing the hanging column, connection plates are reserved at the corresponding parts and bolt holes are opened;

[0037] Step 3: On the ground, use bolts to connect the lattice column and the rectangular support of the lifting and unloading mechanism; use bolts to connect the hanging column and the top seat of the lifting and unloading mechanism;

[0038] Step 4: hoist the lattice column and the rectangular support as a whole to the position of the anchor bolts and install the bolts to fix them. Hoist the hanging column and the top seat to the top of the rectangular support and place them. Re-measure the elevation and verticality. If there is any error, adjust it in time.

[0039] Step 5: Hoist the roof steel beams;

[0040] Step 6: One construction worker uses a climbing device to observe from the top of the column. The climbing device allows the construction workers to complete the bolt connection between the roof steel beam and the column at high altitude. The construction workers must wear protective equipment, set up a cordon on the ground, and have a dedicated person to monitor. Another construction worker operates the lifting and unloading mechanism to continuously lift the column to the connection point of the steel beam, and stop lifting immediately after the two are tightly fitted.

[0041] Step 7: Connect the roof steel beams to the hanging column bolts, and the construction process is all done at eye level;

[0042] Step 8. One construction worker uses climbing equipment to reach the connection between the hanging column and the top seat, and removes the connecting bolts between the hanging column and the top seat. Another construction worker operates the unloading device to reset it, lifts out the lattice column, and cuts off the anchor bolts. Before cutting, the elevation and verticality of the hanging column are measured and corrected again to ensure that they meet the requirements. The installation of this hanging column is completed.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, according to the technical essence of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. A new type of steel structure conversion layer suspender installation device, characterized in that: include: A steel lattice column (1), anchor bolts (2), a lifting and unloading mechanism (3), a hanging column (4), a connecting bolt (5) and a roof steel beam (6), wherein the anchor bolts (2) are pre-buried in the floor of a house and are located directly below the roof steel beam (6); the bottom end of the steel lattice column (1) is detachably fixedly mounted on the anchor bolts (2); the top end of the steel lattice column (1) is detachably fixedly mounted with the fixed end of the lifting and unloading mechanism (3); the top of the lifting and unloading mechanism (3) is detachably fixedly mounted with the bottom end of the hanging column (4); the top end of the hanging column (4) is fixedly mounted on the bottom end of the roof steel beam (6) via the connecting bolts (5).

2. A novel steel structure conversion layer suspender installation device according to claim 1, characterized in that: Two connecting plates are symmetrically fixedly mounted on the upper and lower ends of the steel lattice column (1), and a plurality of bolt holes are evenly arranged on the connecting plates.

3. A novel steel structure conversion layer suspender installation device according to claim 2, characterized in that: The anchor bolt (2) is L-shaped, the lower part of the anchor bolt (2) is pre-buried in the floor of the house, the upper threaded section of the anchor bolt (2) protrudes from the floor, a plurality of anchor bolts (2) are evenly arranged, the upper threaded sections of the plurality of anchor bolts (2) respectively penetrate through a plurality of bolt holes and are fixedly connected to the lower connecting plate through a plurality of nuts.

4. A novel steel structure conversion layer suspender installation device according to claim 2, characterized in that: The lifting and unloading mechanism (3) comprises: a rectangular support (301), a lower wedge block (306), a top seat (310) and an upper wedge block (311); the bottom end of the rectangular support (301) is detachably fixedly mounted on a plurality of bolt holes of an upper connecting plate of a steel lattice column (1) by means of a plurality of fixing bolts; a plurality of lower wedge blocks (306) are evenly arranged on the top end of the rectangular support (301); an upper wedge block (311) corresponding to and wedge-shaped to the plurality of lower wedge blocks (306) is arranged on the bottom end of the top seat (310); the top end of the top seat (310) is detachably fixedly mounted on the bottom end of a suspension column (4) by means of a plurality of fixing bolts; a driving mechanism is arranged inside the rectangular support (301) for driving the plurality of lower wedge blocks (306) to move radially toward or away from each other with the center of the rectangular support (301) as the center of a circle.

5. A novel steel structure conversion layer suspender installation device according to claim 4, characterized in that: The driving mechanism comprises: a truncated table (302), a driving plate (303), a sliding column (304), a limiting slider (305), a driving gear (307), a bearing (308) and a driving shaft (309); the cross section of the rectangular support (301) is square; a circular cavity (3011) is provided inside the rectangular support (301); a cross-shaped sliding groove (3012) is provided at the top of the rectangular support (301); a cross sliding hole (3013) is provided between the cross-shaped sliding groove (3012) and the circular cavity (3011); the truncated table (302) is fixedly connected to the middle of the bottom end of the circular cavity (3011); the driving plate (303) is rotatably connected to the top of the truncated table (302) with its axis as the center of the circle; a vortex-shaped sliding groove (3031) is provided at the top of the driving plate (303); the lower wedge block (306) is provided with a plurality of spherical grooves (3031) and a plurality of spherical grooves (3031) are provided at the bottom of the truncated table (302); ) are provided with four, four lower wedge blocks (306) are distributed in a circular array and are respectively slidably connected to the four ends of the cross-shaped slide groove (3012), the inner side of the bottom end of the lower wedge block (306) is fixedly connected to a limit slider (305), the four limit sliders (305) are respectively slidably connected to the four ends of the cross slide hole (3013), the bottom end of the limit slider (305) is fixedly connected to a slide column (304), the four slide columns (304) are all embedded and slidably connected in the vortex-shaped slide groove (3031), the bottom of the driving disk (303) is evenly meshed with four driving gears (307), the outer end of the driving gear (307) is fixedly connected to a driving shaft (309), the driving shaft (309) is rotatably connected to the inner wall of the rectangular support (301) through a bearing (308), and the driving shaft (309) passes through the outside of the rectangular support (301).

6. A novel steel structure conversion layer suspender installation device according to claim 5, characterized in that: The bottom end of the driving disk (303) is provided with a rotating circular groove, the top end of the truncated table (302) is embedded and rotatably connected in the rotating circular groove, the bottom side wall of the driving disk (303) is provided with a helical tooth groove, the driving gear (307) is a helical gear, the driving gear (307) is engaged with the helical tooth groove, the middle part of the four sides of the rectangular support (301) are provided with through holes, the driving shaft (309) is movably inserted to the outside of the through hole, and the outer end of the driving shaft (309) is provided with a hexagonal groove.

7. The novel steel structure conversion layer suspender installation device according to claim 4 is characterized by: The top end of the lower wedge block (306) is provided with a linear downward slope sloping downward from the outside to the inside, and the bottom end of the upper wedge block (311) is provided with a linear upward slope sloping downward from the outside to the inside, and the linear downward slope is wedge-shapedly connected to the linear upward slope.

8. A novel steel structure conversion layer suspender installation method, using the novel steel structure conversion layer suspender installation device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Measure and lay out the position of the hanging column according to the design documents and calibrate it again; make the anchor bolt clamping die and embed the anchor bolts according to the position and elevation of the hanging column; Step 2: Process and manufacture the lattice column according to the lattice column drawing, reserve connection plates at both ends of the lattice column, and open bolt holes. When processing the hanging column, reserve connection plates at the corresponding positions and open bolt holes; Step 3: On the ground, use bolts to connect the lattice column and the rectangular support of the lifting and unloading mechanism; use bolts to connect the hanging column and the top seat of the lifting and unloading mechanism; Step 4: hoist the lattice column and the rectangular support as a whole to the position of the anchor bolts and install the bolts to fix them. Hoist the hanging column and the top seat to the top of the rectangular support and place them. Re-measure the elevation and verticality. If there is any error, adjust it in time. Step 5: Hoist the roof steel beams; Step 6: One construction worker uses a climbing device to observe from the top of the sling, while another construction worker operates the lifting and unloading mechanism to continuously lift the sling to the connection point of the steel beam. The lifting stops immediately after the two are tightly fitted. Step 7: Connect the roof steel beams to the hanging column bolts, and the construction process is all done at eye level; Step 8: One construction worker uses climbing equipment to reach the connection between the hanging column and the top seat, removes the connecting bolts between the hanging column and the top seat, and another construction worker operates the unloading device to reset it, lifts out the lattice column, cuts off the anchor bolts, and completes the installation of this hanging column.

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