A steel lattice column positioning structure for deep foundation pit construction

Abstract

The utility model discloses a steel lattice column positioning structure of deep foundation pit construction applies in building engineering technical field, the utility model discloses through the positioning demand of quick adaptation of different size steel reinforcement cage, effectively avoid the deformation risk of traditional welding or temporary support, and the design of four -way synchronous telescopic guarantees perpendicularity control, and simplifies the installation process, especially applicable to narrow foundation pit environment, and the construction efficiency and safety are significantly improved, four -way telescopic support frame cooperation double pulley design, the interval between adjustable pulley, can fast clamping different specifications steel lattice column, ensure perpendicularity accurate control, and the pulley contact surface reduces friction damage, and the construction efficiency and safety in deep foundation pit narrow space are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a steel lattice column positioning structure for deep foundation pit construction. Background Technology

[0002] Lattice columns are a common structural form with strong bending resistance in building construction. They are mainly composed of reinforced concrete or steel sections and have the characteristics of high strength and small cross-section. Their cross-section is usually designed to be biaxially symmetric or uniaxially symmetric. By arranging the materials in a position away from the axis of inertia, the bending resistance efficiency is improved. They are widely used in factory frame columns, deep foundation pit support and reverse construction methods.

[0003] Traditional steel lattice column positioning structures used in deep foundation pit construction may result in insufficient positioning accuracy of the reinforcing cage, requiring repeated manual adjustments and increasing the risk of verticality deviation. Furthermore, traditional steel lattice column positioning structures used in deep foundation pit construction require repeated manual measurements and corrections, and cannot be adapted to columns of different specifications, increasing the risk of verticality deviation and reducing construction efficiency.

[0004] To address the issues mentioned in the background, a steel lattice column positioning structure for deep foundation pit construction is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a steel lattice column positioning structure for deep foundation pit construction, which has the advantages of synchronous expansion and contraction support and multi-specification adaptability.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a steel lattice column positioning structure for deep foundation pit construction, comprising a through pipe, a fixing block two fixedly sleeved at the bottom of the surface of the through pipe, a rotating block rotatably sleeved at the middle of the surface of the through pipe, a fixing block one fixedly sleeved at the top of the surface of the through pipe, a sliding sleeve bolted to the front end, rear end and both sides of the top of the fixing block one, a support rod slidably sleeved inside the sliding sleeve, a limit rod bolted to the bottom of the support rod, limit grooves opened at the front end, rear end and both sides of the top of the rotating block, and the inside of the limit grooves slidably connected to the bottom of the surface of the limit rod, and an adjustment positioning mechanism provided at the bottom of the support rod facing one end of the through pipe.

[0007] Using the above technical solution: When pre-embedded steel lattice columns are required for deep foundation pit construction, first set up bases on both sides of the top of the deep foundation pit opening. Secure the structural fixing blocks to the top of the two bases. Use a crane to lift the reinforcing cage, suspending it at the center of the top of the structure until it remains stationary. When the reinforcing cage does not sway, slowly and vertically lower it into the interior of the deep foundation pit through-pipe. When the reinforcing cage reaches the required depth, stop lowering it. Workers need to measure and determine if the verticality of the reinforcing cage needs adjustment. After adjustment, workers hold one end of the handle and push it inward. The handle moves the support rod on the same side inward. The sliding sleeve limits the movement of the support rod, and the support rod moves the limiting rod, opening... The opening prevents obstruction of the movement of the limiting rod, and the limiting groove limits the movement of the limiting rod. The movement of the limiting rod drives the rotating block to rotate, and the rotation of the rotating block drives the limiting rods on the other three sides to move. The limiting rods on the other three sides drive the support rod on the copper surface to move inward. After the baffle of the support rod passes over the steel bars of the steel cage, the crane slowly lowers it and places the steel cage on top of the support rod. The support rod supports the steel cage and can quickly adapt to the positioning requirements of steel cages of different sizes. It effectively avoids the deformation risk of traditional welding or temporary support. The four-sided synchronous expansion and contraction design not only ensures verticality control but also simplifies the installation process. It is especially suitable for narrow foundation pit environments and significantly improves construction efficiency and safety.

[0008] The present invention is further configured such that the adjustment positioning includes a slide groove, the slide groove is opened at the bottom of the support rod facing the through pipe, a slider is slidably connected inside the slide groove, a pulley is bolted to the outside of the slider, a screw hole is opened at the top of the slider, and a locking bolt is threaded to the top of the inner wall of the screw hole.

[0009] The above technical solution involves setting up an adjustment and positioning mechanism. After the reinforcing cage is supported, workers first measure the spacing between the I-beams on both sides of the steel lattice column, adjust the spacing of the pulleys, and the movement of the pulleys drives the movement of the slider. The sliding groove limits the movement of the slider, and the locking bolts are tightened into the bolt holes for fixation. The slots do not hinder the movement of the locking bolts, and the hidden slots can hide and protect the locking bolts from being crushed by the reinforcing cage. After the locking bolts fix the slider, the crane suspends the steel lattice column and places it at the top center of the reinforcing cage. When the steel lattice column does not sway, it is slowly lowered. The pulleys slide against the surface of the I-beams of the steel lattice column, helping to keep the steel lattice column vertical. The baffle can be lowered and slide under the steel lattice column. When the pulleys come into contact, the outer side of the baffle is fixed to the inner side of the steel cage to prevent the support rod from shifting due to squeezing of the pulleys during the lowering of the steel lattice. After being lowered to the required depth, the steel cage and steel lattice column are welded and fixed. After welding, one end of the steel lattice column and steel cage is lifted downwards, and the handle is pulled outwards to move the support column outwards and outwards until it is no longer in contact with the steel cage. Finally, the steel lattice column and steel cage are lowered for pouring. The four-sided telescopic support frame, combined with the double pulley design, allows for adjustment of the distance between the pulleys, enabling quick clamping of steel lattice columns of different specifications, ensuring precise verticality control, reducing friction damage on the pulley contact surface, and significantly improving construction efficiency and safety in the narrow space of the deep foundation pit.

[0010] The present invention is further configured such that the front end, rear end and both sides of the top of the fixing block are provided with openings, and the top of the surface of the limiting rod passes through the interior of the openings.

[0011] The above technical solution, by setting an opening, can prevent obstruction of the movement of the limit rod.

[0012] The present invention is further provided that a groove is provided at the top of the support rod near the end of the through pipe.

[0013] The above technical solution is adopted: by setting a slot, the slot can not hinder the movement of the locking bolt.

[0014] The present invention is further configured such that a hidden groove is provided at the top of the inner wall of the slot.

[0015] The above technical solution is adopted: by setting a hidden groove, the locking bolt can be hidden and protected from being crushed by the steel cage.

[0016] The present invention is further configured such that a baffle is bolted to the top of the support rod facing the end of the through pipe.

[0017] The above technical solution involves setting up a baffle. When the steel lattice column is lowered and comes into contact with the pulley, the outer side of the baffle is fixed to the inner side of the steel cage, preventing the pulley from being squeezed and causing the support rod to shift during the lowering of the steel lattice.

[0018] The present invention is further configured such that bases are bolted to both sides of the bottom of the second fixing block.

[0019] The above technical solution, by setting up a base, can stabilize the structure.

[0020] The present invention is further configured such that a handle is bolted to the end of the support rod away from the slide groove.

[0021] The above technical solution allows for easy movement of the support rod by incorporating a handle.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model can quickly adapt to the positioning requirements of steel cages of different sizes, effectively avoid the deformation risk of traditional welding or temporary support, and the four-sided synchronous expansion and contraction design not only ensures verticality control, but also simplifies the installation process. It is especially suitable for narrow foundation pit environments, significantly improving construction efficiency and safety.

[0024] 2. This utility model uses a four-sided telescopic support frame with a double pulley design, which can adjust the distance between the pulleys and quickly clamp steel lattice columns of different specifications, ensuring precise verticality control. The pulley contact surface reduces friction damage, significantly improving construction efficiency and safety in narrow spaces of deep foundation pits. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial front sectional view of the structure of this utility model;

[0027] Figure 3 This is a top sectional view of the fixing block structure of this utility model;

[0028] Figure 4 This is a top sectional view of the rotating block structure of this utility model;

[0029] Figure 5 This is a partial top view of the structure of this utility model.

[0030] Reference numerals in the attached diagram: 1. Through pipe; 2. Fixing block one; 3. Fixing block two; 4. Rotating block; 5. Sliding sleeve; 6. Support rod; 7. Limiting rod; 8. Limiting groove; 9. Sliding groove; 10. Sliding block; 11. Pulley; 12. Screw hole; 13. Locking bolt; 14. Opening; 15. Slot; 16. Hidden groove; 17. Baffle; 18. Base; 19. Handle. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1:

[0033] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A steel lattice column positioning structure for deep foundation pit construction includes a through pipe 1. A fixing block 2 3 is fixedly sleeved at the bottom of the surface of the through pipe 1. A rotating block 4 is rotatably sleeved at the middle of the surface of the through pipe 1. A fixing block 1 2 is fixedly sleeved at the top of the surface of the through pipe 1. Sliding sleeves 5 are bolted to the front end, rear end, and both sides of the top of the fixing block 1 2. A support rod 6 is slidably sleeved inside the sliding sleeve 5. A limit rod 7 is bolted to the bottom of the support rod 6. Limit grooves 8 are formed at the front end, rear end, and both sides of the top of the rotating block 4, and the interior of the limit grooves 8 is slidably connected to the bottom of the surface of the limit rod 7. An adjustment and positioning mechanism is provided at the bottom of the support rod 6 facing the through pipe 1. When steel lattice columns need to be pre-embedded in deep foundation pit construction, bases 18 are first set on both sides of the top of the deep foundation pit opening. The fixing blocks 2 3 of the structure are bolted to the top of the two bases 18 and fixed. A crane is used to lift the steel cage, suspending it at the center of the top of the structure until it is stationary. When the steel cage does not sway, the steel cage is slowly... The crane slowly lowers the steel cage vertically into the interior of the deep foundation pit through the through pipe 1. When the depth of the steel cage is reached, the crane stops lowering. The staff needs to measure and determine whether the verticality of the steel cage needs adjustment. After adjustment, the staff holds the handle 19 at one end and pushes it inward. The handle 19 drives the support rod 6 on the same side to move inward. The sliding sleeve 5 limits the movement of the support rod 6. The support rod 6 drives the limit rod 7 to move. The opening 14 can prevent obstruction of the movement of the limit rod 7. The limit groove 8 limits the movement of the limit rod 7. The movement of the limit rod 7 drives the rotating block 4 to rotate. The rotation of the rotating block 4 drives the limit rods 7 on the other three sides to move. The limit rods 7 on the other three sides drive the support rod 6 on the copper surface to move inward. After the baffle 17 of the support rod 6 passes over the steel bars of the steel cage, the crane slowly lowers the steel cage and places it on top of the support rod 6. The support rod 6 supports the steel cage and can quickly adapt to the positioning requirements of steel cages of different sizes.

[0034] refer to Figure 2 , Figure 3 The front end, rear end and both sides of the top of the fixed block 2 are provided with openings 14, and the top of the surface of the limiting rod 7 is provided through the interior of the openings 14. By providing the openings 14, the movement of the limiting rod 7 can be prevented from being hindered.

[0035] refer to Figure 1 , Figure 2 , Figure 5 A baffle 17 is bolted to the top of the support rod 6 facing the pipe 1. By setting the baffle 17, when the steel lattice column is lowered and comes into contact with the pulley 11, the outer side of the baffle 17 is supported and fixed to the inner side of the steel cage, preventing the pulley 11 from being squeezed during the lowering of the steel lattice and causing the support rod 6 to shift.

[0036] refer to Figure 1 The bottom sides of the fixing block 2 3 are bolted with bases 18, which can stabilize the structure.

[0037] refer to Figure 1 , Figure 2 , Figure 5 A handle 19 is bolted to the end of the support rod 6 away from the slide groove 9. The support rod 6 can be moved easily by the handle 19.

[0038] Brief description of the usage process: When pre-embedding steel lattice columns is required for deep foundation pit construction, first set up base 18 on both sides of the top of the deep foundation pit opening. Secure the structural fixing block 2 3 to the top of the two bases 18. Use a crane to lift the reinforcing cage, suspending it at the center of the top of the structure until it remains stationary. When the reinforcing cage does not sway, slowly lower it vertically downwards through the through pipe 1 into the deep foundation pit. When the reinforcing cage reaches the required depth, stop lowering it. Workers need to measure and determine if the verticality of the reinforcing cage needs adjustment. After adjustment, workers hold one end of the handle 19 and push it inwards. The handle 19 then moves the support rod on the same side. 6 moves inward, the sliding sleeve 5 limits the movement of the support rod 6, the support rod 6 drives the limit rod 7 to move, the opening 14 can prevent obstruction of the movement of the limit rod 7, the limit groove 8 limits the movement of the limit rod 7, the movement of the limit rod 7 drives the rotating block 4 to rotate, the rotation of the rotating block 4 drives the limit rods 7 on the other three sides to move, the limit rods 7 on the other three sides drive the support rod 6 on the copper surface to move inward, after the baffle 17 of the support rod 6 passes over the steel bars of the steel cage, the crane slowly lowers it and places the steel cage on the top of the support rod 6, the support rod 6 supports the steel cage and can quickly adapt to the positioning requirements of steel cages of different sizes.

[0039] Example 2:

[0040] refer to Figure 1 , Figure 2 , Figure 5A positioning structure for steel lattice columns in deep foundation pit construction includes a sliding groove 9. The sliding groove 9 is located at the bottom of the support rod 6 facing the through pipe 1. A slider 10 is slidably connected inside the sliding groove 9. A pulley 11 is bolted to the outside of the slider 10. A screw hole 12 is opened at the top of the slider 10. A locking bolt 13 is threaded to the top of the inner wall of the screw hole 12. After the steel reinforcement cage is supported, the workers first measure the spacing between the I-beams on both sides of the steel lattice column, adjust the spacing of the pulleys 11, and the movement of the pulleys 11 drives the slider 10 to move. The sliding groove 9 limits the movement of the slider 10. The locking bolt 13 is tightened into the screw hole 12 for fixation. The groove 15 can not hinder the movement of the locking bolt 13, and the hidden groove 16 can hide and protect the locking bolt 13 from being crushed by the steel reinforcement cage. After the locking bolt 13 secures the slider 10, the crane suspends the steel lattice column and places it at the top center of the rebar cage. When the steel lattice column does not sway, it is slowly lowered. The pulley 11 slides against the I-beam surface of the steel lattice column to help keep the steel lattice column vertical. When the steel lattice column is lowered and comes into contact with the pulley 11, the outer side of the baffle 17 is fixed to the inner side of the rebar cage to prevent the pulley 11 from being squeezed during the lowering process and causing the support rod 6 to shift. After being lowered to the required depth, the rebar cage and steel lattice column are welded and fixed. After welding, one end of the steel lattice column and rebar cage is lifted downwards, and the handle 19 is pulled outwards to move the support column outwards and outwards until it no longer comes into contact with the rebar cage. Finally, the steel lattice column and rebar cage are lowered for pouring.

[0041] refer to Figure 5 The top of the support rod 6 is provided with a slot 15 near the end of the through pipe 1. By providing the slot 15, the movement of the locking bolt 13 can be unimpeded.

[0042] refer to Figure 2 , Figure 5 A hidden groove 16 is provided at the top of the inner wall of the slot 15. By setting the hidden groove 16, the locking bolt 13 can be hidden and protected from being crushed by the steel cage.

[0043] Brief description of the usage process: After the steel cage is supported, the staff first measures the spacing between the I-beams on both sides of the steel lattice column, adjusts the spacing of the pulleys 11, and the movement of the pulleys 11 drives the slider 10 to move. The sliding groove 9 limits the movement of the slider 10. The locking bolts 13 are tightened into the bolt holes 12 for fixation. The slot 15 does not hinder the movement of the locking bolts 13, and the hidden groove 16 can hide and protect the locking bolts 13 from being crushed by the steel cage. After the locking bolts 13 fix the slider 10, the crane suspends the steel lattice column and places it at the top center of the steel cage. When the steel lattice column does not sway, it is slowly lowered. The pulley 11 slides against the surface of the I-beam of the steel lattice column, helping the steel lattice column remain vertical. When the steel lattice column is lowered and comes into contact with the pulley 11, the outer side of the baffle 17 is fixed to the inner side of the reinforcing cage to prevent the pulley 11 from being squeezed during the lowering process and causing the support rod 6 to shift. After being lowered to the required depth, the reinforcing cage and steel lattice column are welded and fixed. After welding, one end of the steel lattice column and reinforcing cage is lifted downwards, and the handle 19 is pulled outwards to move the support column outwards and away from contact with the reinforcing cage. Finally, the steel lattice column and reinforcing cage are lowered for pouring.

[0044] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A steel lattice column positioning structure for deep foundation pit construction, comprising a through pipe (1), characterized in that: A fixing block 2 (3) is fixedly sleeved at the bottom of the surface of the tube (1), a rotating block (4) is rotatably sleeved at the middle of the surface of the tube (1), a fixing block 1 (2) is fixedly sleeved at the top of the surface of the tube (1), a sliding sleeve (5) is bolted to the front end, rear end and both sides of the top of the fixing block 1 (2), a support rod (6) is slidably sleeved inside the sliding sleeve (5), a limit rod (7) is bolted to the bottom of the support rod (6), a limit groove (8) is opened at the front end, rear end and both sides of the top of the rotating block (4), and the inside of the limit groove (8) is slidably connected to the bottom of the surface of the limit rod (7), and an adjustment and positioning mechanism is provided at the bottom of the support rod (6) facing the tube (1).

2. The steel lattice column positioning structure for deep foundation pit construction according to claim 1, characterized in that: The adjustment and positioning includes a slide groove (9), which is located at the bottom of the support rod (6) facing the through pipe (1). A slider (10) is slidably connected inside the slide groove (9). A pulley (11) is bolted to the outside of the slider (10). A screw hole (12) is opened at the top of the slider (10). A locking bolt (13) is threaded to the top of the inner wall of the screw hole (12).

3. The steel lattice column positioning structure for deep foundation pit construction according to claim 1, characterized in that: The front end, rear end and both sides of the top of the fixed block (2) are provided with openings (14), and the top of the surface of the limiting rod (7) is provided with openings (14).

4. The steel lattice column positioning structure for deep foundation pit construction according to claim 1, characterized in that: The support rod (6) has a slot (15) at one end near the through pipe (1).

5. The steel lattice column positioning structure for deep foundation pit construction according to claim 4, characterized in that: A hidden groove (16) is provided at the top of the inner wall of the slot (15).

6. The steel lattice column positioning structure for deep foundation pit construction according to claim 1, characterized in that: A baffle (17) is bolted to the top of the support rod (6) facing the end of the through pipe (1).

7. The steel lattice column positioning structure for deep foundation pit construction according to claim 1, characterized in that: The two sides of the bottom of the fixing block 2 (3) are bolted with bases (18).

8. A steel lattice column positioning structure for deep foundation pit construction according to claim 1, characterized in that: A handle (19) is attached to the end of the support rod (6) away from the slide groove (9).

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