Concrete column with anti-seismic function

Abstract

The utility model belongs to the technical field of forming dies, and particularly relates to a concrete column with an anti-seismic function, which comprises a die, a driving mechanism and a stretching mechanism. The arranged driving mechanism can evenly lay concrete outside the prestressed steel bars, the anti-seismic function of the concrete column is improved, the arranged stretching mechanism can stretch the prestressed steel bars in a segmented mode so that it can be guaranteed that all the sections of steel bars are evenly stressed, the stress concentration problem caused by overall non-uniformity is avoided, and the anti-seismic performance of the concrete column is improved. The uniformity is favorable for improving the overall mechanical property of the reinforcing steel bar, and the stretching degree of each section of reinforcing steel bar can be more accurately controlled through segmented stretching, so that the fine regulation and control of the prestress can be realized, the stretching effect of the prestressed reinforcing steel bar can be manually observed, and the prestressed reinforcing steel bar can be secondarily reinforced or overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, in particular to a concrete column with earthquake-resistant function. Background Art

[0002] Concrete columns with earthquake-resistant functions mainly include reinforced concrete core separated inner and outer double columns, steel-concrete columns, prestressed concrete columns-steel beam joints and fiber-reinforced concrete columns. The main feature of prestressed concrete columns is that before the structural components are subjected to external loads, pressure is applied to them first, thereby generating a prestressed state to reduce or offset the tensile stress caused by external loads. This method can delay or avoid the appearance of cracks and increase the rigidity and crack resistance of the structure.

[0003] In actual production, existing prestressed concrete columns directly stretch the two ends of the steel bars, but direct stretching may cause local stress concentration in the steel bars, especially when the steel bar material is uneven or defective. This stress concentration will significantly reduce the overall mechanical properties of the steel bars. At the same time, direct stretching requires more precise control equipment and operating techniques. Once improperly controlled, it is easy to cause excessive or insufficient stretching of the steel bars, affecting the uniform distribution of prestress and reducing the seismic effect of the concrete column. For this reason, we propose a concrete column with seismic resistance. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a concrete column with earthquake-resistant function, which solves the background problem.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a concrete column with earthquake resistance, comprising:

[0006] A mold shell, the mold shell is used for forming prestressed concrete columns, steel bars are placed inside the mold shell, and stirrups are fixedly welded outside the steel bars;

[0007] A driving mechanism, the driving mechanism is used to drive the mold shell to rotate so as to form the prestressed concrete column inside the mold shell, the driving mechanism includes a mounting seat placed on the ground, the mounting seat is internally rotatably connected to a driven gear, the mold shell is externally fixedly connected to a driven gear, and the driven gear is meshed with the driven gear;

[0008] A stretching mechanism, the stretching mechanism is used to uniformly stretch the steel bars so that the prestress inside the concrete column is evenly distributed, thereby improving the seismic resistance of the concrete column. The top of the mounting seat is slidably connected to a plurality of stretching plates, and the tops of the plurality of stretching plates are provided with rotating grooves. A stretching rod is rotatably connected inside the rotating grooves, and one side of the stretching rod abuts against one side of the stirrups. The insides of the plurality of stretching plates are fixedly connected to the same telescopic tube. The bottom of the inner wall of the mounting seat is fixedly connected to a high-pressure airbag, and two hydraulic presses are fixedly installed on the bottom of the inner wall of the mounting seat. The output ends of the two hydraulic presses are fixedly connected to push plates, and the opposite sides of the two push plates abut against one side of the high-pressure airbag respectively. The top of the high-pressure airbag is connected to a connecting tube, and the connecting tube is connected to the telescopic tube.

[0009] Preferably, the mold shell includes an upper and lower shell body, and sealing plates are fixedly connected to opposite sides of the upper and lower shell bodies of the mold shell. The top of the sealing plate of the bottom shell body of the mold shell is fixedly connected to a sealing bolt, and the sealing bolt passes through the sealing plate of the top shell body of the mold shell and is threadedly screwed with a sealing nut.

[0010] Preferably, the driving mechanism also includes two driving shafts rotatably connected to both sides of the inner wall of the mounting base, the two driving shafts are symmetrically arranged, the driven gear is fixedly sleeved on the outside of the driving shaft, and a driving motor is also fixedly installed on the bottom of the inner wall of the mounting base, and the output end of the driving motor is fixedly connected to a transmission wheel, and the two driving shafts and the outside of the transmission wheel are rotatably sleeved with the same transmission belt.

[0011] Preferably, the stretching mechanism also includes a stretching fixing block fixedly welded to both ends of the steel bar, and two stretching plates are slidably connected to the inside of the mold shell. One side of the two stretching plates is provided with a stretching fixing groove, and the stretching fixing groove is arranged in a conical shape, and the stretching fixing groove is adapted to the stretching fixing block.

[0012] Preferably, one side of the stretching plate is fixedly connected to a threaded rod, and the two threaded rods are slidably connected to one side of the mold shell. The external threads of the threaded rod are screwed with a stretching fixing nut, and one side of the stretching fixing nut is fixedly connected to a driving ring. The top of the mounting seat is fixedly connected to a limiting slider, and a limiting groove is provided at the bottom of the stretching plate, and the limiting slider is adapted to the limiting groove.

[0013] Preferably, a fixing groove is provided inside the stretching plate, a sliding groove is provided on one side of the stretching rod, a fastening bolt is threadedly screwed on one side of the stretching plate, the fastening bolt is slidably connected inside the sliding groove, and the stretching rod is adapted to the fixing groove.

[0014] Beneficial Effects

[0015] ·The utility model provides a concrete column with earthquake resistance. Compared with the prior art, the utility model has the following beneficial effects: the utility model can uniformly prestress the prestressed concrete column through the mold shell, the driving mechanism can evenly lay the concrete on the outside of the prestressed steel bar, and improve the earthquake resistance of the concrete column. The stretching mechanism can stretch the prestressed steel bar in sections to ensure that each section of the steel bar is evenly stressed, avoiding the stress concentration problem caused by overall unevenness. This uniformity is conducive to improving the overall mechanical properties of the steel bar. The stretching degree of each section of the steel bar can be more accurately controlled through segmented stretching, thereby realizing fine regulation of the prestress, and the stretching effect of the prestressed steel bar can be manually observed, and secondary reinforcement or maintenance can be performed on it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the main body of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the main mold shell of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the main driving mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the main tensile plate of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the main stretching sheet part of the utility model;

[0021] Figure 6 It is a schematic structural diagram of the main high-pressure airbag part of the utility model.

[0022] In the figure: 1. mold shell; 2. driving mechanism; 3. stretching mechanism; 4. fixing groove; 5. driven gear; 6. mounting seat; 7. driving shaft; 8. driven gear; 9. driving motor; 10. transmission wheel; 11. transmission belt; 12. sealing plate; 13. sealing bolt; 14. sealing nut; 15. steel bar; 16. stirrup; 17. stretching plate; 18. stretching fixing groove; 19. stretching fixing block; 20. threaded rod; 21. stretching fixing nut; 22. driving ring; 23. high-pressure airbag; 24. push plate; 25. hydraulic press; 26. connecting pipe; 27. telescopic pipe; 28. limit slider; 29. ​​limit slide groove; 30. stretching plate; 31. rotating groove; 32. stretching rod; 33. sliding groove; 34. fastening bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a concrete column with earthquake-resistant function, comprising:

[0025] A mold shell 1 is used for forming prestressed concrete columns. Steel bars 15 are placed inside the mold shell 1. Stirrups 16 are fixedly welded outside the steel bars 15. The mold shell 1 includes an upper and lower shell body. Sealing plates 12 are fixedly connected to opposite sides of the upper and lower shell bodies of the mold shell 1. A sealing bolt 13 is fixedly connected to the top of the sealing plate 12 of the bottom shell body of the mold shell 1. The sealing bolt 13 passes through the sealing plate 12 of the top shell body of the mold shell 1 and is threadedly screwed with a sealing nut 14.

[0026] By setting the above structure, the concrete and the stirrups 16 of the steel bar 15 can be sealed to prevent the concrete inside the mold shell 1 from leaking out during the prestressed concrete column forming process. Specifically, the mold shell 1 is first opened, and the welded steel bars 15 and stirrups 16 are placed inside the mold shell 1, and concrete is poured into the mold shell 1 at the same time. After the pouring is completed, the steel bars 15 are stretched. After the stretching is completed, the two shell covers of the mold shell 1 are put together, and the sealing bolts 13 are passed through the sealing plate 12 of the top shell, and then the sealing bolts 13 are tightened to complete the sealing of the mold shell 1, which can effectively prevent the concrete inside the mold shell 1 from leaking out.

[0027] The driving mechanism 2 is used to drive the mold shell 1 to rotate so that the prestressed concrete column inside the mold shell 1 is formed. The driving mechanism 2 includes a mounting base 6 placed on the ground. The internal rotation of the mounting base 6 is connected to a driven gear 8. The outside of the mold shell 1 is fixedly connected to a driven gear 5, and the driven gear 8 is meshed with the driven gear 5. The driving mechanism 2 also includes two driving shafts 7 rotatably connected to both sides of the inner wall of the mounting base 6. The two driving shafts 7 are symmetrically arranged. The driven gear 8 is fixedly sleeved on the outside of the driving shaft 7. A driving motor 9 is also fixedly installed on the bottom of the inner wall of the mounting base 6. The output end of the driving motor 9 is fixedly connected to a transmission wheel 10. The two driving shafts 7 and the outside of the transmission wheel 10 are rotatably sleeved with the same transmission belt 11.

[0028] By setting the above structure, the molding of prestressed concrete columns can be guaranteed. Specifically, after the mold shell 1 is sealed, the drive motor 9 is started, and the output end of the drive motor 9 drives the transmission wheel 10 to rotate. The rotation of the transmission wheel 10 drives the transmission belt 11 to rotate. The rotation of the transmission belt 11 drives the two driving shafts 7 to rotate at the same time. The two driving shafts 7 rotate to drive the driven gear 8 to rotate. The driven gear 8 rotates to drive the driven gear 5 to rotate. The driven gear 5 rotates to drive the mold shell 1 to rotate, so that centrifugal force is generated inside the mold shell 1, and the concrete inside the mold shell 1 is evenly fitted with the steel bars 15 and the stirrups 16, thereby ensuring the molding of the prestressed concrete column.

[0029] The stretching mechanism 3 is used to evenly stretch the steel bars 15 so that the prestress inside the concrete column is evenly distributed, thereby improving the seismic resistance of the concrete column. A plurality of stretching plates 30 are slidably connected to the top of the mounting seat 6. A rotating groove 31 is provided on the top of each of the stretching plates 30. A stretching rod 32 is rotatably connected inside the rotating groove 31. One side of the stretching rod 32 abuts against one side of the stirrup 16. The interior of each of the stretching plates 30 is fixedly connected to the same telescopic tube 27. A high-pressure airbag 23 is fixedly connected to the bottom of the inner wall of the mounting seat 6. Two hydraulic presses 25 are fixedly installed on the bottom of the inner wall of the mounting seat 6. The output ends of the two hydraulic presses 25 are fixedly connected to push plates 24. The opposite sides of the two push plates 24 abut against one side of the high-pressure airbag 23 respectively. A connecting tube 26 is connected to the top of the high-pressure airbag 23, and the connecting tube 26 is connected to the telescopic tube 27.

[0030] By setting the above-mentioned structure, the steel bars 15 can be effectively stretched evenly, thereby improving the seismic strength of the prestressed concrete column. Specifically, before pouring concrete into the mold shell 1, a plurality of stretching rods 32 are first inserted into the center surrounded by the plurality of steel bars 15 and abutted on one side of the stirrup 16. At this time, the two hydraulic presses 25 are started, and the output ends of the two hydraulic presses 25 drive the two push plates 24 to approach each other. The two push plates 24 approach each other to squeeze the high-pressure airbag 23, and the gas inside the high-pressure airbag 23 is pressed into the interior of the telescopic tube 27 through the connecting pipe 26. The telescopic tube 27 stretches, and the extension of the telescopic tube 27 drives the plurality of stretching plates 30 to slide along the length direction of the limiting slide block 28 through the limiting slide groove 29, so as to stretch a section of the steel bar 15 between each two stretching plates 30, thereby improving the uniformity of stretching.

[0031] It is worth mentioning that under the same tensile force, when a section of steel bar 15 with poor tensile properties is stretched, the distance between the two stretching plates 30 is relatively close. At this time, the staff can mark the section of steel bar 15 with poor tensile properties and perform secondary maintenance thereafter or before the prestressed concrete column is processed, thereby improving the seismic performance of the prestressed concrete column.

[0032] The stretching mechanism 3 also includes a stretching fixing block 19 fixedly welded at both ends of the steel bar 15. Two stretching plates 17 are slidably connected inside the mold shell 1. One side of the two stretching plates 17 is provided with a stretching fixing groove 18. The stretching fixing groove 18 is arranged in a conical shape. The stretching fixing groove 18 is adapted to the stretching fixing block 19. One side of the stretching plate 17 is fixedly connected with a threaded rod 20. The two threaded rods 20 are both slidably connected to one side of the mold shell 1. The external threads of the threaded rod 20 are screwed with a stretching fixing nut 21. One side of the stretching fixing nut 21 is fixedly connected with a driving ring 22. The top of the mounting seat 6 is fixedly connected with a limiting slider 28. The bottom of the stretching plate 30 is provided with a limiting slide groove 29, and the limiting slider 28 is adapted to the limiting slide groove 29.

[0033] By setting the above-mentioned structure, the stretched steel bar 15 can be fixed to facilitate the forming of the prestressed concrete column. Specifically, after the steel bar 15 is stretched in sections, the two stretching plates 17 are inserted into the two ends of the steel bar 15 through the stretching fixing groove 18, and the two stretching plates 17 are rotated so that the right side of the stretching plate 17 conflicts with the left side of the stretching fixing block 19. At this time, the driving ring 22 is rotated, and the rotation of the driving ring 22 drives the stretching fixing nut 21 to rotate to fix the stretched steel bar 15. At this time, the two hydraulic presses 25 are started, and the output ends of the two hydraulic presses 25 drive the corresponding push plates 24 away from each other. The gas inside the telescopic tube 27 flows back to the inside of the high-pressure airbag 23, and the plurality of stretching rods 32 can be pulled out to the inside of the plurality of steel bars 15, so that the stretching rods 32 are separated from the stirrups 16, and concrete can be poured into the mold shell 1 and the mold shell 1 is closed to form the prestressed concrete column.

[0034] A fixing groove 4 is provided inside the stretching plate 30 , a sliding groove 33 is provided on one side of the stretching rod 32 , a fastening bolt 34 is threadedly screwed on one side of the stretching plate 30 , the fastening bolt 34 is slidably connected inside the sliding groove 33 , and the stretching rod 32 is adapted to the fixing groove 4 .

[0035] By setting up the above-mentioned structure, the stretching rod 32 can be stored when the steel bar 15 is not stretched, which is convenient for the staff to move. Specifically, after the steel bar 15 is stretched, the fastening bolts 34 are screwed to gradually separate the two sides of the stretching plate 30 from the two sides of the stretching rod 32. At this time, the stretching rod 32 is rotated, the stretching rod 32 is erected, and the stretching rod 32 is inserted into the inside of the fixing groove 4, which is convenient for the staff to move.

[0036] Working principle: first open the mold shell 1, and place the welded steel bars 15 and stirrups 16 inside the mold shell 1. Before pouring concrete into the mold shell 1, first insert a plurality of stretching rods 32 into the center surrounded by a plurality of steel bars 15, and abut against one side of the stirrups 16. At this time, start the two hydraulic presses 25. The output ends of the two hydraulic presses 25 drive the two push plates 24 to approach each other. The two push plates 24 approach each other to squeeze the high-pressure airbag 23, and press the gas inside the high-pressure airbag 23 into the inside of the telescopic tube 27 through the connecting pipe 26. The telescopic tube 27 stretches, and the extension of the telescopic tube 27 drives a plurality of stretching plates 30 to slide along the length direction of the limit slide 28 through the limit slide 29, and stretches a section of steel bars 15 between each two stretching plates 30, thereby improving the uniformity of stretching.

[0037] After the steel bar 15 is stretched in sections, two stretching sheets 17 are inserted into the two ends of the steel bar 15 through the stretching fixing groove 18, and the two stretching sheets 17 are rotated so that the right side of the stretching sheet 17 conflicts with the left side of the stretching fixing block 19. At this time, the driving ring 22 is rotated, and the rotation of the driving ring 22 drives the stretching fixing nut 21 to rotate, so as to fix the stretched steel bar 15. At this time, the two hydraulic presses 25 are started, and the output ends of the two hydraulic presses 25 drive the corresponding push plates 24 to move away from each other, and the gas inside the telescopic tube 27 flows back to the inside of the high-pressure airbag 23, so that the plurality of stretching rods 32 can be pulled out to the inside of the plurality of steel bars 15, so that the stretching rods 32 are separated from the stirrups 16, and then concrete can be poured into the mold shell 1 and the mold shell 1 can be closed to form the prestressed concrete column, and the two shells of the mold shell 1 are covered, and the sealing bolts 13 pass through the sealing plate 12 of the top shell, and then the sealing bolts 13 are tightened to complete the sealing of the mold shell 1, which can effectively prevent the leakage of concrete inside the mold shell 1;

[0038] After the mold shell 1 is sealed, the drive motor 9 is started, and the output end of the drive motor 9 drives the transmission wheel 10 to rotate, and the rotation of the transmission wheel 10 drives the transmission belt 11 to rotate, and the rotation of the transmission belt 11 drives the two driving shafts 7 to rotate at the same time. The rotation of the two driving shafts 7 drives the driven gear 8 to rotate, and the rotation of the driven gear 8 drives the driven gear 5 to rotate, and the rotation of the driven gear 5 drives the mold shell 1 to rotate, so that centrifugal force is generated inside the mold shell 1, and the concrete inside the mold shell 1 is evenly fitted with the steel bars 15 and the stirrups 16, thereby ensuring the forming of the prestressed concrete column.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete column with earthquake resistance, characterized in that: include, A mold shell (1), the mold shell (1) is used for forming prestressed concrete columns, steel bars (15) are placed inside the mold shell (1), and stirrups (16) are fixedly welded outside the steel bars (15); A driving mechanism (2), the driving mechanism (2) being used to drive the mold shell (1) to rotate so as to form the prestressed concrete column inside the mold shell (1), the driving mechanism (2) comprising a mounting seat (6) placed on the ground, the interior of the mounting seat (6) being rotatably connected to a driven gear (8), the exterior of the mold shell (1) being fixedly connected to a driven gear (5), the driven gear (8) being meshed with the driven gear (5); The stretching mechanism (3) is used to stretch the steel bar (15) uniformly, so that the prestress inside the concrete column is evenly distributed, thereby improving the earthquake resistance of the concrete column. The top of the mounting seat (6) is slidably connected to a plurality of stretching plates (30), and the tops of the plurality of stretching plates (30) are each provided with a rotation groove (31). The interior of the rotation groove (31) is rotatably connected to a stretching rod (32), one side of the stretching rod (32) is in contact with one side of the stirrup (16), and the interior of the plurality of stretching plates (30) is fixed. The mounting seat (6) is fixedly connected to the same telescopic tube (27); the bottom of the inner wall of the mounting seat (6) is fixedly connected to a high-pressure airbag (23); two hydraulic machines (25) are fixedly installed at the bottom of the inner wall of the mounting seat (6); the output ends of the two hydraulic machines (25) are fixedly connected to push plates (24); the opposite sides of the two push plates (24) are respectively in contact with one side of the high-pressure airbag (23); the top of the high-pressure airbag (23) is connected to a connecting tube (26); and the connecting tube (26) is connected to the telescopic tube (27).

2. The concrete column with earthquake resistance according to claim 1, characterized in that: The mold shell (1) comprises an upper and lower shell body, and sealing plates (12) are fixedly connected to opposite sides of the upper and lower shell bodies of the mold shell (1). A sealing bolt (13) is fixedly connected to the top of the sealing plate (12) of the bottom shell body of the mold shell (1), and the sealing bolt (13) passes through the sealing plate (12) of the top shell body of the mold shell (1) and is threadedly screwed with a sealing nut (14).

3. The concrete column with earthquake resistance according to claim 1, characterized in that: The driving mechanism (2) further comprises two driving shafts (7) rotatably connected to the inner wall of the mounting seat (6) on both sides, the two driving shafts (7) being symmetrically arranged, the driven gear (8) being fixedly sleeved on the outside of the driving shafts (7), a driving motor (9) being fixedly mounted on the bottom of the inner wall of the mounting seat (6), the output end of the driving motor (9) being fixedly connected to a transmission wheel (10), and the two driving shafts (7) and the outer sides of the transmission wheel (10) being rotatably sleeved with a same transmission belt (11).

4. The concrete column with earthquake resistance according to claim 1, characterized in that: The stretching mechanism (3) also includes a stretching fixing block (19) fixedly welded to both ends of the steel bar (15); two stretching plates (17) are slidably connected inside the mold shell (1); one side of the two stretching plates (17) is provided with a stretching fixing groove (18); the stretching fixing groove (18) is arranged in a conical shape; and the stretching fixing groove (18) is adapted to the stretching fixing block (19).

5. The concrete column with earthquake resistance according to claim 4, characterized in that: A threaded rod (20) is fixedly connected to one side of the stretching plate (17), and the two threaded rods (20) are slidably connected to one side of the mold shell (1). The external threads of the threaded rod (20) are screwed with a stretching fixing nut (21), and one side of the stretching fixing nut (21) is fixedly connected to a driving ring (22). The top of the mounting seat (6) is fixedly connected to a limiting slider (28), and a limiting groove (29) is provided at the bottom of the stretching plate (30), and the limiting slider (28) is adapted to the limiting groove (29).

6. The concrete column with earthquake resistance according to claim 1, characterized in that: A fixing groove (4) is provided inside the stretching plate (30), a sliding groove (33) is provided on one side of the stretching rod (32), a fastening bolt (34) is screwed on one side of the stretching plate (30), and the fastening bolt (34) is slidably connected inside the sliding groove (33), and the stretching rod (32) is adapted to the fixing groove (4).

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