Recyclable deep foundation pit prestress supporting system

Abstract

The utility model discloses a recoverable deep foundation pit prestress supporting system, and relates to the technical field of foundation pits, the recoverable deep foundation pit prestress supporting system comprises recoverable supporting piles which are symmetrically installed in a foundation pit in an array mode, the opposite sides, close to the tops, of the two groups of recoverable supporting piles are fixedly connected with top beams, and the tops of the top beams are provided with sliding grooves; the top of the sliding groove is adjustably connected with a bridge type prestress supporting system, and the inner wall of the sliding groove is slidably connected with a sliding block. According to the bridge type prestress supporting system, through the arranged positioning mechanism, after a worker hoists the bridge type prestress supporting system, the sliding blocks are aligned with the sliding grooves, then the bridge type prestress supporting system is moved through the hoisting mechanism, the bridge type prestress supporting system can be moved, and then the bridge type prestress supporting system can be limited and clamped through the limiting mechanism; the problems that in the prior art, installation of a bridge type prestress supporting system by workers is troublesome, and time and energy of the workers are wasted are effectively solved.

Description

Recyclable deep foundation pit prestressed support system Technical Field

[0001] This utility model relates to the field of foundation pit technology, and in particular to a recyclable deep foundation pit prestressed support system. Background Technology

[0002] An excavation pit is a pit dug below ground level for the construction of the foundation of a building or structure. It must be excavated according to the designed foundation elevation and plan dimensions. The purpose is to provide working space for foundation construction. The excavation pit is a pit dug at the foundation design location according to the foundation elevation and foundation plan dimensions. Its purpose is to create conditions for underground structure construction, ensure construction safety, and protect the surrounding environment.

[0003] A recyclable prestressed support system, as described in patent publication number CN216689422U, comprises two rows of retaining structures, two capping beams, and a bridge-type prestressed support system. The two rows of retaining structures are spaced apart on both sides of the excavation pit. Each row includes multiple sequentially interlocking recyclable support piles, each containing a first prestressed structure. A capping beam is connected to each row of recyclable support piles, and the capping beam contains the first prestressed structure. The bridge-type prestressed support system has two ends respectively mounted on and connected to a capping beam. The bridge-type prestressed support system has a bearing surface for supporting the soil and contains a second prestressed structure. This recyclable prestressed support system can reduce construction costs and improve construction efficiency and quality.

[0004] In the aforementioned existing technology, the prestressed support system needs to be hoisted to the cap beam and then installed on the cap beam by screwing or snapping. Since the installation requires workers to manually align the screw holes or snaps on the prestressed support system with the screw holes or snaps on the cap beam before tightening, the installation of the prestressed support system is quite troublesome and wastes the workers' time and energy. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a recyclable deep foundation pit prestressed support system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a recyclable deep foundation pit prestressed support system, comprising recyclable support piles symmetrically arranged in an array within the foundation pit, a cap beam fixedly connected to the opposite sides of the two sets of recyclable support piles near the top, a sliding groove provided at the top of the cap beam, a bridge-type prestressed support system tunably connected to the top of the sliding groove, a sliding block slidably connected to the inner wall of the sliding groove, inclined supports connected to the sliding blocks fixedly connected to both sides of the bottom of the bridge-type prestressed support system, and a positioning mechanism provided at the top of the sliding block.

[0007] As a further description of the above technical solution:

[0008] The positioning mechanism includes a box body fixedly connected to the middle of the top of the sliding block. A top plate is detachably connected to the inner wall of the box body near the top. Fixed plates are symmetrically installed at the middle of the top of the inner wall of the box body. The opposite sides of the two fixed plates are connected to an electric push rod. A connecting rod is fixedly connected to the bottom of the electric push rod. A connecting plate is fixedly connected to the bottom of the connecting rod. Adjusting components are symmetrically arranged on both sides of the connecting plate. Limiting holes are opened on both sides of the top of the sliding block. Limiting grooves penetrating the limiting holes are arrayed at the bottom of the inner wall of the sliding groove and the top of the crown beam.

[0009] As a further description of the above technical solution:

[0010] The adjusting component includes sleeves fixedly connected to both sides of the top of the connecting plate. An external threaded plate is threadedly connected to the inner wall of the sleeve near the top. A hexagonal limiting rod is slidably connected to the inner wall of the sleeve. A cylinder is fixedly connected to the top of the hexagonal limiting rod. A hexagonal through hole adapted to the hexagonal limiting rod is opened on the external threaded plate. An adjusting block is fixedly connected to the end of the cylinder. A movable plate is fixedly connected to the inner wall of the hexagonal limiting rod near the bottom of the sleeve. A return spring is provided on the movable plate and sleeved with the hexagonal limiting rod.

[0011] As a further description of the above technical solution:

[0012] The top of the top plate has a through hole, and the adjusting component is slidably connected to the through hole.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the box near the top is symmetrically equipped with fixing blocks. Threaded holes are opened through the four corners of the top plate and the fixing blocks, and bolts that are compatible with them are installed in the threaded holes.

[0015] As a further description of the above technical solution:

[0016] An anti-slip sleeve is fitted onto the outer contour of the adjusting block, and anti-slip texture is formed on the outer contour of the anti-slip sleeve.

[0017] This utility model has the following beneficial effects:

[0018] 1. Compared with existing technologies, this recyclable deep foundation pit prestressed support system, through its positioning mechanism, allows workers to lift the bridge prestressed support system, align the sliding block with the sliding groove, and then move the bridge prestressed support system using the hoisting mechanism. Subsequently, the limiting mechanism can be used to limit and lock the bridge prestressed support system, effectively solving the problem that the installation of the bridge prestressed support system is cumbersome and wastes workers' time and energy in existing technologies.

[0019] 2. Compared with existing technologies, this recyclable deep foundation pit prestressed support system, through the setting of an adjustment component, allows operators to manually separate the adjustment component after the equipment needs to be disassembled when the electric push rod in the positioning mechanism is damaged. This avoids the problem of difficult disassembly of the equipment due to damage to the electric push rod during use, and further increases the practicality of the equipment during use. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall main structure of the recyclable deep foundation pit prestressed support system proposed in this utility model.

[0021] Figure 2 is a partially enlarged structural diagram of the cap beam and prestressed support system of the recyclable deep foundation pit prestressed support system proposed in this utility model.

[0022] Figure 3 is a schematic diagram of the main structure of the box of the recyclable deep foundation pit prestressed support system proposed in this utility model.

[0023] Figure 4 is a cross-sectional structural diagram of the adjustable component of the recyclable deep foundation pit prestressed support system proposed in this utility model.

[0024] Legend:

[0025] 1. Recyclable support pile; 2. Crown beam; 3. Sliding groove; 4. Bridge-type prestressed support system; 5. Inclined support; 6. Sliding block; 7. Box body; 8. Top plate; 9. Fixing plate; 10. Electric push rod; 11. Connecting rod; 12. Connecting plate; 13. Adjusting component; 14. Limiting hole; 141. Limiting groove; 15. Sleeve; 16. External threaded plate; 17. Hexagonal limiting rod; 171. Cylinder; 18. Adjusting block; 19. Movable plate; 20. Return spring; 21. Fixing block; 22. Anti-slip sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Referring to Figures 1-4, the recyclable deep foundation pit prestressed support system provided by this utility model includes recyclable support piles 1 symmetrically arranged in an array within the foundation pit. Two sets of recyclable support piles 1 are fixedly connected to a cap beam 2 on opposite sides near the top. A sliding groove 3 is provided on the top of the cap beam 2. A bridge-type prestressed support system 4 is tunably connected to the top of the sliding groove 3. A sliding block 6 is slidably connected to the inner wall of the sliding groove 3. Inclined supports 5 connected to the sliding blocks 6 are fixedly connected to both sides of the bottom of the bridge-type prestressed support system 4. A positioning mechanism is provided on the top of the sliding block 6.

[0028] First, multiple recyclable support piles 1 are symmetrically arrayed and installed in the foundation pit. Then, the capping beam 2 is installed on the opposite sides of the two sets of recyclable support piles 1 near the top. Subsequently, after the workers lift the bridge prestressed support system 4, they align the sliding block 6 at the bottom of the inclined support 5 on the bridge prestressed support system 4 with the sliding groove 3 opened on the capping beam 2. Then, the lifting mechanism is used to move the bridge prestressed support system 4, causing the sliding block 6 at the bottom of the inclined support 5 to move within the sliding groove 3. When the sliding block 6 moves to the designated position, the positioning mechanism limits and engages the bridge prestressed support system 4. This effectively solves the problem that in the existing technology, the installation of the bridge prestressed support system 4 is relatively troublesome and wastes the workers' time and energy.

[0029] The positioning mechanism includes a box 7 fixedly connected to the middle of the top of the sliding block 6. A top plate 8 is detachably connected to the inner wall of the box 7 near the top. Fixing plates 9 are symmetrically installed at the middle of the top of the inner wall of the box 7. The opposite sides of the two fixing plates 9 are connected to the electric push rod 10. A connecting rod 11 is fixedly connected to the bottom of the electric push rod 10. A connecting plate 12 is fixedly connected to the bottom of the connecting rod 11. Adjusting parts 13 are symmetrically arranged on both sides of the connecting plate 12. Limiting holes 14 are opened on both sides of the top of the sliding block 6. Limiting grooves 141 that penetrate the limiting holes 14 are arrayed at the bottom of the inner wall of the sliding groove 3 and the top of the crown beam 2. A through hole is opened at the top of the top plate 8. The adjusting parts 13 are slidably connected to the through hole. Fixing blocks 21 are symmetrically installed on the inner wall of the box 7 near the top. Threaded holes are opened through the four corners of the top of the top plate 8 and the fixing blocks 21. Bolts that are compatible with the threaded holes are installed in the threaded holes.

[0030] Because the positioning mechanism is not activated, the connecting rod 11 on the electric push rod 10 is at its highest position, which in turn causes the connecting plate 12 at the bottom of the connecting rod 11 to be at its highest position. Consequently, the adjusting component 13 on the connecting plate 12 is also at its highest position through the through hole on the top plate 8. When the sliding block 6 moves to the designated position, the electric push rod 10 is activated to drive the connecting rod 11 and the connecting plate 12 at the bottom of the connecting rod 11 to move downwards. As a result, the adjusting component 13 on the connecting plate 12 is engaged with the limiting hole 14 and the limiting groove 141, making it easier for the operator to install the bridge prestressed support system 4. When it is necessary to replace or repair the parts inside the box 7, the operator can remove the bolts on the top plate 8 from the threaded holes, remove the top plate 8 from the top of the fixing block 21, and then repair the parts inside the box 7.

[0031] The adjusting component 13 includes sleeves 15 fixedly connected to both sides of the top of the connecting plate 12. The inner wall of the sleeve 15 near the top is threaded with an external threaded plate 16. The inner wall of the sleeve 15 is slidably connected with a hexagonal limiting rod 17. The top of the hexagonal limiting rod 17 is fixedly connected with a cylinder 171. The external threaded plate 16 has a hexagonal through hole that matches the hexagonal limiting rod 17. The end of the cylinder 171 is fixedly connected with an adjusting block 18. The inner wall of the outer contour of the hexagonal limiting rod 17 near the bottom of the sleeve 15 is fixedly connected with a movable plate 19. The movable plate 19 is provided with a return spring 20 that is sleeved with the hexagonal limiting rod 17. The outer contour of the adjusting block 18 is sleeved with an anti-slip sleeve 22. The outer contour of the anti-slip sleeve 22 has anti-slip texture.

[0032] When it is necessary to disassemble the bridge prestressed support system 4, firstly, start the electric push rod 10 to drive the connecting plate 12 at the bottom of the connecting rod 11 to move upward. Then, the connecting plate 12 drives the adjusting component 13 to move upward, so that the adjusting component 13 moves out of the limiting groove 141 and the limiting hole 14. Then, use the hoisting mechanism to drive the bridge prestressed support system 4, so that the inclined support 5 at the bottom of the bridge prestressed support system 4 drives the sliding block 6 to move out of the sliding groove 3. At this time, the disassembly of the bridge prestressed support system 4 is completed.

[0033] After the electric push rod 10 is damaged, the operator removes the bolts on the top plate 8 from the threaded holes and removes the top plate 8 from the top of the fixing block 21. At this time, the operator pulls the adjusting block 18 upward to move the hexagonal limiting rod 17 at the bottom of the cylinder 171 upward. Because the bottom of the inner wall of the sleeve 15 has a hexagonal hole, the hexagonal limiting rod 17 can pass through the sleeve 15. When the hexagonal limiting rod 17 moves upward into the sleeve 15, the adjusting block 18 is rotated to rotate the hexagonal limiting rod 17 at the bottom of the cylinder 171, so that the hexagonal limiting rod 17 no longer passes through the hexagonal hole at the bottom of the inner wall of the sleeve 15. As the hexagonal limiting rod 17 moves upward and retracts into the sleeve 15, it is rotated to make Its hexagonal structure is misaligned with the hexagonal hole on the bottom wall of the sleeve 15, so that it can be inserted into the sleeve 15, thereby making the hexagonal limiting rod 17 contact the bottom of the inner wall of the sleeve 15. Then, the hexagonal limiting rod 17 in the other sleeve 15 is operated in the same way, thereby driving the other hexagonal limiting rod 17 to engage with the bottom of the inner wall of the other sleeve 15. At this time, the hexagonal limiting rod 17 is moved out from the limiting groove 141 and the limiting hole 14. Then, the hoisting mechanism is used to drive the bridge prestressed support system 4, so that the inclined support 5 at the bottom of the bridge prestressed support system 4 drives the sliding block 6 to move out from the sliding groove 3. Then the disassembly of the bridge prestressed support system 4 is completed, which increases the practicality of the equipment.

[0034] Furthermore, after the electric push rod 10 is damaged, because the return spring 20 is placed directly on the movable plate 19, and the two ends of the return spring 20 are not connected to the external thread plate 16 and the movable plate 19, and the return spring 20 is sleeved with the hexagonal limit rod 17 and the cylinder 171, it is convenient for the cylinder 171 to rotate. At the same time, the elasticity of the return spring 20 can be used. When the hexagonal limit rod 17 is engaged in the limit hole 14 and the limit groove 141, the foundation pit will vibrate during construction. This allows the hexagonal limit rod 17 to be quickly returned to the limit hole 14 when it separates from the limit hole 14 and the limit groove 141, thus ensuring the limiting effect of the equipment on the bridge prestressed support system 4.

[0035] Finally, after the operator disassembles the bridge prestressed support system 4, the damaged electric push rod 10 can be repaired. Then, the adjusting block 18 is rotated in the opposite direction to make the hexagonal limit rod 17 at the bottom of the cylinder 171 no longer jammed with the inner wall of the sleeve 15, so that the components inside the box 7 can be used normally. After the return spring 20 is damaged, the adjusting block 18 can be pulled upward to move the cylinder 171 and the hexagonal limit rod 17 upward, so that the hexagonal limit rod 17 is jammed with the internal hexagonal hole on the inner wall of the external thread plate 16. Then, the adjusting block 18 is rotated to make the hexagonal limit rod 17 at the bottom of the cylinder 171 rotate. Then, the external thread plate 16 is removed from the inner wall of the sleeve 15, and the return spring 20 is replaced. This effectively solves the problem of difficult disassembly of the equipment due to the damage of the electric push rod 10 during the use of the equipment, and further increases the practicality of the equipment during use.

[0036] Working principle: First, multiple recyclable support piles 1 are symmetrically arrayed and installed in the foundation pit. Then, the capping beam 2 is installed on the opposite sides of the two sets of recyclable support piles 1 near the top. Subsequently, after the workers lift the bridge prestressed support system 4, they align the sliding block 6 at the bottom of the inclined support 5 on the bridge prestressed support system 4 with the sliding groove 3 opened on the capping beam 2. Then, the lifting mechanism is used to move the bridge prestressed support system 4, causing the sliding block 6 at the bottom of the inclined support 5 to move within the sliding groove 3. When the sliding block 6 moves to the designated position, because the positioning mechanism has not been activated... This causes the connecting rod 11 on the electric push rod 10 to be at its highest point, which in turn causes the connecting plate 12 at the bottom of the connecting rod 11 to be at its highest point. Consequently, the adjusting member 13 on the connecting plate 12 is also at its highest point through the through hole on the top plate 8. When the sliding block 6 moves to the designated position, the electric push rod 10 is activated to drive the connecting rod 11 and the connecting plate 12 at the bottom of the connecting rod 11 to move downwards. As a result, the adjusting member 13 on the connecting plate 12 is engaged with the limiting hole 14 and the limiting groove 141, making it easier for the operator to install the bridge prestressed support system 4.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A recyclable deep foundation pit prestressed support system, comprising recyclable support piles (1) symmetrically arranged in an array within the foundation pit, characterized in that: Two sets of recyclable support piles (1) are fixedly connected to a cap beam (2) on opposite sides near the top. The top of the cap beam (2) is provided with a sliding groove (3). The top of the sliding groove (3) is adjustablely connected to a bridge-type prestressed support system (4). The inner wall of the sliding groove (3) is slidably connected to a sliding block (6). The bottom sides of the bridge-type prestressed support system (4) are fixedly connected to inclined supports (5) connected to the sliding block (6). The top of the sliding block (6) is provided with a positioning mechanism.

2. The recyclable deep foundation pit prestressed support system according to claim 1, characterized in that: The positioning mechanism includes a box (7) fixedly connected to the middle of the top of the sliding block (6). The inner wall of the box (7) near the top is detachably connected to a top plate (8). A fixing plate (9) is symmetrically installed at the middle of the top of the inner wall of the box (7). The opposite sides of the two fixing plates (9) are connected to an electric push rod (10). A connecting rod (11) is fixedly connected to the bottom of the electric push rod (10). A connecting plate (12) is fixedly connected to the bottom of the connecting rod (11). Adjusting parts (13) are symmetrically arranged on both sides of the connecting plate (12). Limiting holes (14) are opened on both sides of the top of the sliding block (6). Limiting grooves (141) penetrating the limiting holes (14) are arrayed at the bottom of the inner wall of the sliding groove (3) and the top of the crown beam (2).

3. The recyclable deep foundation pit prestressed support system according to claim 2, characterized in that: The adjusting component (13) includes sleeves (15) fixedly connected to the top two sides of the connecting plate (12). The inner wall of the sleeve (15) near the top is threaded with an external thread plate (16). The inner wall of the sleeve (15) is slidably connected with a hexagonal limiting rod (17). The top of the hexagonal limiting rod (17) is fixedly connected with a cylinder (171). The external thread plate (16) is provided with a hexagonal through hole that matches the hexagonal limiting rod (17). The end of the cylinder (171) is fixedly connected with an adjusting block (18). The inner wall of the outer contour of the hexagonal limiting rod (17) near the bottom of the sleeve (15) is fixedly connected with a movable plate (19). The movable plate (19) is provided with a return spring (20) that is sleeved with the hexagonal limiting rod (17).

4. The recyclable deep foundation pit prestressed support system according to claim 2, characterized in that: The top of the top plate (8) has a through hole, and the adjusting member (13) is slidably connected to the through hole.

5. The recyclable deep foundation pit prestressed support system according to claim 2, characterized in that: The inner wall of the box (7) near the top is symmetrically equipped with fixing blocks (21). Threaded holes are opened through the four corners of the top plate (8) and the fixing blocks (21), and bolts that are compatible with them are installed in the threaded holes.

6. The recyclable deep foundation pit prestressed support system according to claim 3, characterized in that: An anti-slip sleeve (22) is fitted onto the outer contour of the adjusting block (18), and anti-slip texture is provided on the outer contour of the anti-slip sleeve (22).

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