A temporary fixing device for facilitating the precise positioning of steel columns

Abstract

A temporary fixing device for facilitating the precise positioning of steel columns belongs to the technical field of auxiliary devices for the butt joint of steel columns at high altitudes. The purpose is to provide a temporary fixing device for the butt joint positioning of multi-section steel columns at high altitudes that can quickly and accurately position and is convenient to operate. The following technical scheme is adopted. The structures of the first fixing seat, the second fixing seat, the third fixing seat, and the fourth fixing seat are the same. The first fixing seat and the second fixing seat are fixedly connected together by two connecting plates, and the third fixing seat and the fourth fixing seat are also fixedly connected together by two connecting plates. First fixing plates are fixed on both sides of the first fixing seat and the second fixing seat, and second fixing plates are fixed on both sides of the third fixing seat and the fourth fixing seat. Four fastening bolts respectively pass through the through holes on the corresponding second fixing plates and are threadedly connected with the threaded holes of the fixing plates on the first fixing plates. This invention is used for the temporary fixing during the butt joint of upper and lower section steel columns at high altitudes.

Description

Technical Field

[0001] A temporary fixing device for facilitating the accurate positioning of a steel column according to the present invention belongs to the technical field of auxiliary devices for the aerial butt joint of steel shapes. Background Technique

[0002] Steel-concrete structures are widely used in large structures with certain seismic requirements due to their high structural bearing capacity, large rigidity, excellent extensibility, and good seismic performance. During the construction of steel-concrete structures in high-rise buildings, large bridges and other structures, the hoisting and butt joint of steel columns are often involved. To ensure the reasonable force of the steel-concrete structure and the smooth progress of subsequent work, the installation of steel columns must be accurately positioned. At the same time, due to the large size and weight of prefabricated steel column components, high requirements are imposed on aerial hoisting work and aerial position correction work. It is necessary to hoist in sections and then butt and fix in the air. After the steel column is hoisted in place in the air, it needs to be temporarily fixed first. The traditional temporary positioning method requires welding connection plates to the steel column in advance. After the construction is completed, the connection plates need to be destructively removed and cannot be recycled. Moreover, the anti-corrosion and other properties of the steel column at the removal site are reduced, which not only causes waste of resources, but also increases the implementation difficulty, reduces the performance of the steel column, and has low positioning accuracy.

[0003] Generally speaking, the existing temporary fixing methods for hoisting steel columns are inefficient, and workers work at high altitudes for a long time, posing certain safety hazards. To improve the hoisting and positioning efficiency of steel columns and reduce the risk of high-altitude operations, there is an urgent need for a device that can facilitate the temporary fixing of the upper and lower segments of steel columns while accurately and quickly positioning. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a temporary fixing device for the butt joint positioning of multi-segment steel columns at high altitude that can quickly and accurately position and is convenient to operate.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions. A temporary fixing device for facilitating the accurate positioning of a steel column includes a first fixing seat, a second fixing seat, a third fixing seat, a fourth fixing seat, a connection plate, a first fixing plate, a second fixing plate, and fastening bolts;

[0006] The first fixing seat includes outer wing plates, webs, inner wing plates, movable plates, and tightening bolts. Two webs are vertically fixed at both ends of the outer wing plate. Two inner wing plates are respectively vertically fixed to one web. There is a gap between the two inner wing plates, forming a rectangular frame with an opening. Two fixed columns are located at both ends inside the rectangular frame. The two ends of the fixed columns are respectively fixed to the outer wing plate and the corresponding inner wing plate. Through holes are opened on the movable plates, and one movable plate is slidably installed on each fixed column through the through holes. Two outer wing plate threaded holes are opened on the outer wing plate. Two tightening bolts are respectively screwed into one outer wing plate threaded hole and respectively abutted against one movable plate;

[0007] The structures of the second fixing base, the third fixing base, and the fourth fixing base are the same as that of the first fixing base. The second fixing base is located directly below the first fixing base. The third fixing base is arranged opposite to the first fixing base. The fourth fixing base is arranged opposite to the second fixing base and is located directly below the third fixing base. The first fixing base and the second fixing base are fixedly connected together by two connecting plates. The third fixing base and the fourth fixing base are also fixedly connected together by two connecting plates.

[0008] First fixing plates are fixed on both sides of the first fixing base and the second fixing base. Fixing plate threaded holes are formed in the first fixing plates. Second fixing plates are fixed on both sides of the third fixing base and the fourth fixing base. Through holes are formed in the second fixing plates. Four fastening bolts respectively pass through the through holes in the corresponding second fixing plates and are threadedly connected with the fixing plate threaded holes in the first fixing plates.

[0009] Further, the outer wing plate includes two sub - plates which are detachably connected together.

[0010] Further, grooves with connecting threaded holes and outward - protruding connecting parts are provided on both of the two sub - plates. The two sub - plates are overlapped and spliced together through the grooves and the outward - protruding connecting parts. Multiple connecting bolts are screwed into the corresponding connecting threaded holes to connect the two sub - plates together.

[0011] Further, outer wing plate fastening nuts are fixed on both the inner and outer sides of the outer wing plate threaded hole. The inner diameter of the outer wing plate fastening nut is the same as the inner diameter of the outer wing plate threaded hole.

[0012] Further, a circular positioning plate is fixed at the end of each of the jacking bolts. Circular grooves with diameters adapted to the diameter of the positioning plates are provided at corresponding positions on each movable plate.

[0013] Further, the depth of the groove is half of the thickness of the movable plate, and the thickness of the positioning plate is the same as the depth of the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects.

[0015] The present invention is convenient to operate, has good positioning and fixing effects, and is simple to disassemble. At the same time, it meets the requirements of high - altitude operations. When hoisting and docking the upper and lower section steel columns, the lower fixing base can be used to connect the lower section steel column, and the upper fixing base can quickly position the upper section steel column and perform temporary fixing. In addition, after the upper and lower section steel columns are permanently fixed, the present invention can be removed without damage and without wasting resources. The disassembly operation is simple and does not damage the steel column. Moreover, the present invention does not suffer wear during use and can be reused after being removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the first fixing seat in the present invention.

[0019] Figure 3 It is an exploded structural schematic diagram of the outer wing plate in the present invention.

[0020] Figure 4 It is a schematic diagram of the upper steel column and the lower steel column to be connected.

[0021] Figure 5 It is a schematic diagram of the usage state of the present invention.

[0022] In the figure: 1 is the first fixing seat, 2 is the second fixing seat, 3 is the third fixing seat, 4 is the fourth fixing seat, 5 is the connecting plate, 6 is the first fixing plate, 7 is the second fixing plate, 8 is the fastening bolt, 9 is the outer wing plate, 10 is the web, 11 is the inner wing plate, 12 is the fixing column, 13 is the movable plate, 14 is the tightening bolt, 15 is the threaded hole of the outer wing plate, 16 is the threaded hole of the fixing plate, 17 is the connecting threaded hole, 18 is the connecting bolt, 19 is the fastening nut of the outer wing plate, 20 is the positioning plate, 21 is the groove, 22 is the upper steel column, and 23 is the lower steel column. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0024] The present invention provides the following embodiments.

[0025] As Figure 1 shown, a temporary fixing device for facilitating the precise positioning of steel columns in the present invention includes a first fixing seat 1, a second fixing seat 2, a third fixing seat 3, a fourth fixing seat 4, a connecting plate 5, a first fixing plate 6, a second fixing plate 7, and a fastening bolt 8;

[0026] As Figure 2As shown in the figure, the first fixing base 1 includes outer wing plates 9, webs 10, inner wing plates 11, fixing columns 12, movable plates 13 and tightening bolts 14. Two webs 10 are vertically fixed at both ends of the outer wing plate 9. Two inner wing plates 11 are respectively and vertically fixed to one web 10. There is a gap between the two inner wing plates 11, forming a rectangular frame with an opening. Two fixing columns 12 are located at both ends inside the rectangular frame. Both ends of the fixing columns 12 are respectively fixed to the outer wing plate 9 and the corresponding inner wing plate 11. Through holes are formed in the movable plates 13, and one movable plate 13 is slidably mounted on each fixing column 12 through the through holes. Two outer wing plate threaded holes 15 are formed in the outer wing plate 9. Two tightening bolts 14 are respectively screwed into one outer wing plate threaded hole 15 and respectively abutted against one movable plate 13;

[0027] As Figure 1 shown in the figure, the structures of the second fixing base 2, the third fixing base 3 and the fourth fixing base 4 are the same as that of the first fixing base 1. The second fixing base 2 is located directly below the first fixing base 1. The third fixing base 3 is arranged opposite to the first fixing base 1. The fourth fixing base 4 is arranged opposite to the second fixing base 2. The fourth fixing base 4 is located directly below the third fixing base 3. The first fixing base 1 and the second fixing base 2 are fixedly connected together by two connecting plates 5. The third fixing base 3 and the fourth fixing base 4 are also fixedly connected together by two connecting plates 5;

[0028] First fixing plates 6 are fixed on both sides of the first fixing base 1 and the second fixing base 2. Fixing plate threaded holes 16 are formed in the first fixing plates 6. Second fixing plates 7 are fixed on both sides of the third fixing base 3 and the fourth fixing base 4. Through holes are formed in the second fixing plates 7. Four fastening bolts 8 respectively pass through the through holes in the corresponding second fixing plates 7 and are threadedly connected with the fixing plate threaded holes 16 in the first fixing plates 6.

[0029] In the above structure, the movable plate 13 increases the contact area between the tightening bolt 14 and the flange of the steel column, ensuring the clamping effect and thus ensuring the temporary fixing effect of the present invention. At the same time, the clamping method using the movable plate 13 and the inner wing plate 11 enables the present invention to be applicable to steel columns of various specifications as long as the flange width of the steel column can be inserted between the movable plate 13 and the inner wing plate 11.

[0030] The arrangement of the four fastening bolts 8 strengthens the clamping effect of the present invention on the upper and lower steel columns and further strengthens the temporary fixing effect.

[0031] As Figure 3 shown in the figure, the outer wing plate 9 includes two split plates, and the two split plates are detachably connected together. In this way, it is more convenient to disassemble the present invention after the upper and lower sections of the steel column are permanently fixed.

[0032] Both of the two split plates are provided with grooves with connecting threaded holes 17 and outwardly protruding connecting parts. The two split plates are overlapped and spliced together through the grooves and the outwardly protruding connecting parts, and a plurality of connecting bolts 18 are screwed into the corresponding connecting threaded holes 17 to connect the two split plates together. The design of overlapping splicing makes the outer wing plate 9 more flat and beautiful.

[0033] Both the inner and outer sides of the outer wing plate threaded hole 15 are fixed with outer wing plate fastening nuts 19, and the inner diameter of the outer wing plate fastening nut 19 is the same as the inner diameter of the outer wing plate threaded hole 15. The outer wing plate fastening nut 19 improves the mating force of the outer wing plate threaded hole 15 with the tightening bolt 14, making the tightening force and tightening effect of the tightening bolt 14 better.

[0034] A circular positioning plate 20 is fixed at the end of each tightening bolt 14, and a circular groove 21 with a diameter adapted to the diameter of the positioning plate 20 is provided at the corresponding position on each movable plate 13. The positioning plate 20 can strengthen the fastening effect of the tightening bolt 14.

[0035] The depth of the groove 21 is half of the thickness of the movable plate 13, and the thickness of the positioning plate 20 is consistent with the depth of the groove 21.

[0036] When the tightening bolt 14 is tightened, it will push the positioning plate 20 into the groove 21 of the movable plate 13, driving the movable plate 13 to move along the fixed column 12 until it clamps the flange of the steel column together with the inner wing plate 11.

[0037] As Figure 4 shown, after hoisting the upper steel column 22 above the lower steel column 23, it is necessary to temporarily fix the upper and lower steel columns first, then permanently fix them, and finally remove the temporary fixing device. The steel column is an H-shaped steel column.

[0038] As Figure 5As shown in the figure, before using the present invention, preparatory work should be done first, that is, all four fastening bolts 8 are withdrawn from the fixing plate threaded holes 16 on the corresponding first fixing plate 6, and the movable plates 13 in the first fixing seat 1, the second fixing seat 2, the third fixing seat 3 and the fourth fixing seat 4 are pushed away from the inner wing plate 11 to leave a space for inserting the flange of the steel column. After the preparatory work is completed, the second fixing seat 2 and the fourth fixing seat 4 are sleeved from the top of the lower steel column 23, so that the flange of the lower steel column 23 is located between the inner wing plate 11 and the movable plate 13, and the web is located between the two inner wing plates 11. It is sleeved to the position where the middle of the connecting plate 5 is flush with the top of the lower steel column 23, and then the tightening bolts 14 in the second fixing seat 2 and the fourth fixing seat 4 are tightened, so that the positioning plate 20 drives the movable plate 13 to clamp the flange of the lower steel column together with the inner wing plate 11. In this way, the second fixing seat 2 and the fourth fixing seat 4 are fixed to the lower steel column. Then the upper steel column 22 is hoisted and placed. After the flange of the upper steel column 22 enters between the movable plate 13 and the inner wing plate 11 in the first fixing seat 1 and the third fixing seat 3 and is lowered in place, the tightening bolts 14 in the first fixing seat 1 and the third fixing seat 3 are tightened to clamp the flange of the upper steel column 22. Finally, the four fastening bolts 8 are screwed into the fixing plate threaded holes 16 on the corresponding first fixing plate 6 to realize the rapid and accurate temporary positioning of the upper and lower steel columns.

[0039] When the upper and lower steel columns form a permanent fixation and the present invention is disassembled, first remove the connecting bolts 18 on the outer wing plate 9 of the first fixing seat 1, the second fixing seat 2, the third fixing seat 3 and the fourth fixing seat 4, loosen the fastening bolts 8, and then loosen all the tightening bolts 14, and the present invention can be removed from both sides of the upper and lower steel columns. The steps are simple and the operation is very convenient.

[0040] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A temporary fixing device for facilitating the precise positioning of a profiled steel column, characterized in that: It includes a first fixing base (1), a second fixing base (2), a third fixing base (3), a fourth fixing base (4), a connecting plate (5), a first fixing plate (6), a second fixing plate (7) and a fastening bolt (8); The first fixing base (1) includes an outer wing plate (9), a web plate (10), an inner wing plate (11), a fixing column (12), a movable plate (13) and a tightening bolt (14). Two web plates (10) are vertically fixed at both ends of the outer wing plate (9). Two inner wing plates (11) are respectively vertically fixed to one web plate (10). There is a gap between the two inner wing plates (11), forming a rectangular frame with an opening. Two fixing columns (12) are located at both ends inside the rectangular frame. The two ends of the fixing column (12) are respectively fixed to the outer wing plate (9) and the corresponding inner wing plate (11). Through holes are formed in the movable plate (13). One movable plate (13) is slidably mounted on each fixing column (12) through the through hole. Two outer wing plate threaded holes (15) are formed in the outer wing plate (9). Two tightening bolts (14) are respectively screwed into one outer wing plate threaded hole (15) and respectively abutted against one movable plate (13); The structures of the second fixing base (2), the third fixing base (3) and the fourth fixing base (4) are all the same as the structure of the first fixing base (1). The second fixing base (2) is located directly below the first fixing base (1). The third fixing base (3) is arranged opposite to the first fixing base (1). The fourth fixing base (4) is arranged opposite to the second fixing base (2). The fourth fixing base (4) is located directly below the third fixing base (3). The first fixing base (1) and the second fixing base (2) are fixedly connected together by two connecting plates (5). The third fixing base (3) and the fourth fixing base (4) are also fixedly connected together by two connecting plates (5); First fixing plates (6) are fixed on both sides of the first fixing base (1) and the second fixing base (2). Fixing plate threaded holes (16) are formed in the first fixing plates (6). Second fixing plates (7) are fixed on both sides of the third fixing base (3) and the fourth fixing base (4). Through holes are formed in the second fixing plates (7). Four fastening bolts (8) respectively pass through the through holes in the corresponding second fixing plates (7) and are threadedly connected to the fixing plate threaded holes (16) in the first fixing plates (6).

2. The temporary fixing device for accurately positioning a profiled steel column according to claim 1, characterized in that: The outer wing plate (9) includes two split plates, and the two split plates are detachably connected together.

3. The temporary fixing device for accurately positioning a profiled steel column according to claim 2, characterized in that: Grooves with connecting threaded holes (17) and outer convex connecting parts are provided on both of the two split plates. The two split plates are overlapped and spliced together through the grooves and the outer convex connecting parts. A plurality of connecting bolts (18) are screwed into the corresponding connecting threaded holes (17) to connect the two split plates together.

4. A temporary fixing device for facilitating the precise positioning of a profiled steel column according to claim 1 or 2, characterized in that: Outer wing plate fastening nuts (19) are fixed on both the inner and outer sides of the outer wing plate threaded hole (15), and the inner diameter of the outer wing plate fastening nut (19) is the same as the inner diameter of the outer wing plate threaded hole (15).

5. A temporary fixing device for facilitating the precise positioning of a profiled steel column according to claim 1 or 2, characterized in that: A circular positioning plate (20) is fixed at the end of each tightening bolt (14), and a circular groove (21) with a diameter adapted to the diameter of the positioning plate (20) is provided at the corresponding position on each movable plate (13).

6. The temporary fixing device for accurately positioning a profiled steel column according to claim 5, characterized in that: The depth of the groove (21) is half of the thickness of the movable plate (13), and the thickness of the positioning plate (20) is consistent with the depth of the groove (21).

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