Reinforcement cage for cast-in-situ bored pile construction and anti-deformation mounting method thereof

Abstract

The invention provides a reinforcement cage for cast-in-situ bored pile construction and an anti-deformation mounting method thereof. Relates to the technical field of reinforcement cages, in particular to a reinforcement cage for cast-in-situ bored pile construction and an anti-deformation mounting method thereof.The reinforcement cage comprises two mounting plates fixedly mounted in a reinforcement cage body, a fixing pipe is fixedly mounted on the outer walls of the sides, close to each other, of the two mounting plates, and four through openings are formed in the fixing pipe; and rotating rods are rotationally installed in the four through openings correspondingly, the multiple rotating rods are fixedly sleeved with U-shaped plates and worm wheels correspondingly, the four worm wheels are located in the four U-shaped plates correspondingly, and conical inserting rods are slidably installed on the four U-shaped plates correspondingly. The reinforcement cage for cast-in-situ bored pile construction and the anti-deformation mounting method of the reinforcement cage have the advantages that operation is convenient, and the phenomena of floating and deformation of the reinforcement cage in the pouring process are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of steel cages, and in particular to a steel cage used for bored cast-in-place pile construction and an anti-deformation installation method thereof. Background Art

[0002] A bored pile is a pile made by pouring concrete or reinforced concrete into a hole. In construction projects such as roads, railway bridges, etc., bored piles have become an important form of foundation because of their large bearing capacity and strong adaptability. They are widely used in actual projects. During the construction of bored piles, a cylindrical steel cage needs to be lowered into the pile foundation hole.

[0003] However, when pouring concrete in the existing steel cage, the initial pouring speed is often too fast, which greatly increases the friction of the concrete on the steel cage when it rises in the hole. At the same time, the friction of the mud in the wellbore on the steel cage will also increase when it flows upward, which can easily cause the steel cage to float upward. During the floating process, the steel cage may collide with the pile hole wall, causing the steel bar to bend and deform, changing the mechanical properties of the steel bar and reducing its bearing capacity. At the same time, it also changes the distribution of the steel bar in the concrete, resulting in a decrease in the coordinated working performance between the steel bar and concrete when the structure resists horizontal forces. When subjected to upward pull-out force, the tensile strength of the steel bar cannot be effectively transmitted to the concrete, thereby reducing the pull-out resistance of the pile, affecting the stability of the structure, and posing certain safety hazards.

[0004] Therefore, it is necessary to provide a steel cage for bored pile construction and an anti-deformation installation method thereof to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the invention is to provide a steel cage for bored cast-in-place pile construction and an anti-deformation installation method thereof which is easy to operate and can prevent the steel cage from floating up and deforming during the pouring process.

[0006] In order to solve the above technical problems, the present invention provides a steel cage for bored cast-in-place pile construction and an anti-deformation installation method thereof, comprising two mounting plates fixedly installed in a steel cage body, a fixing tube fixedly installed on the outer wall of a side close to each other of the two mounting plates, four through openings are opened on the fixing tube, and rotating rods are rotatably installed in the four through openings, a plurality of the rotating rods are respectively fixedly sleeved with U-shaped plates and worm gears, and the four worm gears are respectively located in the four U-shaped plates, conical plug rods are respectively slidably installed on the four U-shaped plates, and impact plates are respectively fixedly installed at one end of the four conical plug rods, a fixing plate is fixedly installed in the fixing tube, a worm is rotatably installed on the fixing plate, and the worm is meshed with the four worm gears.

[0007] Preferably, a storage groove is provided at the top of the worm gear, and two elastic pull ropes are fixedly installed on the bottom inner wall of the storage groove, and a limiting plate is fixedly installed on the top of the two elastic pull ropes, and the limiting plate is slidably connected to the inner wall of the storage groove, and a connecting rod is fixedly installed on the top of the limiting plate, and a rotating plate is fixedly installed on the top of the connecting rod.

[0008] Preferably, the four conical plug rods are movably sleeved with magnet rings, and the four magnet rings are fixedly connected to the four U-shaped plates, respectively; the four conical plug rods are fixedly mounted with magnet plates, and the four magnet plates are in contact with the four magnet rings, respectively.

[0009] Preferably, two limiting grooves are formed on the inner wall of the receiving groove, and two sides of the limiting plate extend into the two limiting grooves respectively and are slidably connected to the inner walls of the two limiting grooves respectively.

[0010] Preferably, arc-shaped protective plates are respectively fixedly installed in the four U-shaped plates.

[0011] Preferably, a lubricating oil cavity is provided in the worm gear, an air intake connecting hole is provided on the top inner wall of the lubricating oil cavity, and the air intake connecting hole is communicated with the receiving groove, a connecting rod is movably installed in the air intake connecting hole, a rubber sealing ring is fixedly sleeved on the connecting rod, and the rubber sealing ring is slidingly and sealingly connected to the inner wall of the air intake connecting hole, and the top end of the connecting rod is fixedly connected to the limit plate, a cross bar is fixedly installed on the bottom end of the connecting rod, an annular rubber sealing ring is fixedly installed on the cross bar, and the annular rubber sealing ring is slidingly and sealingly connected to the inner wall of the lubricating oil cavity, and two oil outlet holes are provided on the inner wall of the lubricating oil cavity.

[0012] Preferably, a through hole is formed on the fixing plate, a rotating bearing is fixedly installed in the through hole, and the worm penetrates the rotating bearing and is fixedly connected to the inner wall of the rotating bearing.

[0013] Preferably, the four U-shaped plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the four through holes, and the four conical insertion rods respectively penetrate the four linear bearings and are respectively slidably connected to the inner walls of the four linear bearings.

[0014] The present invention also provides a method for anti-deformation installation of a steel cage for bored pile construction, comprising the following steps:

[0015] S1: First, lift the device away from the ground by an external crane, and then slowly place the steel cage body into the pile hole by the crane;

[0016] S2: First, move the rotating plate upward away from the fixed pipe, so that the rubber sealing ring moves upward out of the air inlet connection hole, so that the annular rubber sealing ring moves upward and separates from the oil outlet hole, and the lubricating oil in the lubricating oil cavity flows out through the oil outlet hole and adheres to the surface of the worm;

[0017] S3: The U-shaped plate is driven to change from a vertical state to a horizontal state parallel to the ground by rotating the rotating plate, thereby rotating the conical plug rod to a state perpendicular to the ground;

[0018] S4: The conical rod is inserted into the ground by hammering the impact plate with an external hammer to limit the steel cage body, thereby fixing the steel cage body on the ground.

[0019] Compared with the related art, the steel cage for bored pile construction and the anti-deformation installation method thereof provided by the present invention have the following beneficial effects:

[0020] The present invention provides a steel cage for bored cast-in-place pile construction and an anti-deformation installation method thereof. When the steel cage body contacts the bottom of the pile hole, the rotating plate is first moved upward away from the fixed pipe, so that the lubricating oil in the lubricating oil cavity flows out through the oil outlet hole and adheres to the surface of the worm, and the friction between the worm and the worm wheel is reduced by the lubricating oil, so that the subsequent transmission between the worm and the worm wheel is smoother, and the U-shaped plate is changed from a vertical state to a horizontal state parallel to the ground by rotating the rotating plate, so that the conical plug rod is rotated to a state perpendicular to the ground, and then the staff uses an external hammer to hammer the impact plate to insert the conical plug rod into the ground, and the steel cage body is limited by four conical plug rods, so that the steel cage body is fixedly installed on the ground, so that when people pour concrete, the steel cage body will not float up and collide with the pile hole wall, thereby causing the accident of bending and deformation of the steel bars, so as to ensure the structural stability of the steel cage body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the main structure of a steel cage for bored pile construction provided by the present invention;

[0022] Figure 2 for Figure 1 An enlarged schematic diagram of section A is shown;

[0023] Figure 3 for Figure 2 An enlarged schematic diagram of portion B is shown;

[0024] Figure 4 for Figure 2 An enlarged schematic diagram of section C is shown;

[0025] Figure 5 for Figure 2An enlarged schematic diagram of section D is shown;

[0026] Figure 6 for Figure 1 The U-shaped plate and the fixed pipe are shown in the assembled and unfolded state when working;

[0027] Figure 7 for Figure 1 The worm wheel, worm and U-shaped plate are shown in the assembly and unfolded state when working;

[0028] Figure 8 The present invention is a front view of a steel cage for bored cast-in-place pile construction.

[0029] Numbers in the figure: 1. main body; 2. mounting plate; 3. U-shaped plate; 4. fixing plate; 5. worm; 6. rotating rod; 7. worm wheel; 8. arc-shaped protective plate; 9. conical plug rod; 10. connecting rod; 11. impact plate; 13. fixing tube; 15. rotating plate; 16. magnet ring; 17. magnet plate; 18. limit plate; 19. connecting rod; 20. rubber sealing ring; 21. elastic pull rope; 23. lubricating oil cavity; 24. oil outlet hole; 25. cross bar; 26. annular rubber sealing ring; 30. air intake connecting hole. DETAILED DESCRIPTION

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

[0031] Please refer to Figure 1-Figure 8In an embodiment of the present invention, a steel cage for bored pile construction includes two mounting plates 2 fixedly mounted in a steel cage body 1, a fixing pipe 13 is fixedly mounted on the outer wall of one side of the two mounting plates 2 close to each other, and four through holes are opened on the fixing pipe 13, and rotating rods 6 are rotatably mounted in the four through holes, and a plurality of rotating rods 6 are respectively fixedly sleeved with U-shaped plates 3 and worm gears 7. In order to protect the worm gear 7 and prevent external objects from colliding with the worm gear 7 when people carry the device, causing damage to the rack on the worm gear 7 and affecting the service life of the worm gear 7, the four U-shaped plates 3 are respectively fixedly installed with arc-shaped protective plates 8, and four worm gears 7 are respectively located in the four U-shaped plates 3, and conical plug rods 9 are respectively slidably installed on the four U-shaped plates 3. In order to reduce the friction between the conical plug rod 9 and the U-shaped plate 3, thereby reducing the wear of the conical plug rod 9 and making the conical plug rod 9 slide more smoothly on the U-shaped plate 3, through holes are respectively opened on the four U-shaped plates 3, and linear bearings are respectively fixedly installed in the four through holes. The four conical plug rods 9 respectively penetrate the four linear bearings and are respectively slidably connected to the inner walls of the four linear bearings. One end of the four conical plug rods 9 The impact plates 11 are fixedly installed respectively, and the fixing plate 4 is fixedly installed in the fixing tube 13. The worm 5 is rotatably installed on the fixing plate 4. In order to rotatably install the worm 5 on the fixing plate 4, a through hole is opened on the fixing plate 4, and a rotating bearing is fixedly installed in the through hole. The worm 5 penetrates the rotating bearing and is fixedly connected to the inner wall of the rotating bearing. The rotating bearing makes the worm 5 rotate more stably on the fixing plate 4, and the worm 5 is meshed with four worm wheels 7. The rotation of the worm 5 drives the worm wheel 7 to rotate, and the rotation of the worm wheel 7 drives the rotating rod 6 to rotate, and the rotation of the rotating rod 6 drives the U-shaped plate 3 Rotate so that the U-shaped plate 3 changes from a vertical state to a horizontal state parallel to the ground, and then rotate the conical plug rod 9 to a state perpendicular to the ground, and then the staff uses an external hammer to hammer the impact plate 11 to insert the conical plug rod 9 into the ground, and limit the steel cage body 1 through four conical plug rods 9, so that the steel cage body 1 is fixedly installed on the ground, so that when people pour concrete, the steel cage body 1 will not float up and collide with the pile hole wall, thereby causing the steel bar to bend and deform, thereby ensuring the structural stability of the steel cage body 1.

[0032] In order to allow the device to be stored and thus make it smaller, and to prevent the rotating plate 15 from protruding too high from the fixed tube 13 and causing unnecessary trouble, a storing groove is provided at the top of the worm 5, and two elastic pull ropes 21 are fixedly installed on the bottom inner wall of the storing groove, and a limiting plate 18 is fixedly installed on the top of the two elastic pull ropes 21, and the limiting plate 18 is slidably connected to the inner wall of the storing groove. In order to limit the limiting plate 18 and thereby drive the worm 5 to rotate when the limiting plate 18 rotates, two limiting grooves are provided on the inner wall of the storing groove, and the two sides of the limiting plate 18 extend into the two limiting grooves respectively and are slidably connected to the inner walls of the two limiting grooves respectively, and a connecting rod 10 is fixedly installed on the top of the limiting plate 18, and a rotating plate 15 is fixedly installed on the top of the connecting rod 10.

[0033] In order to keep the conical plug rod 9 stably in the current state by magnetic force when people are not using the device and prevent the conical plug rod 9 from shaking randomly and causing unnecessary trouble, the four conical plug rods 9 are respectively movably provided with a magnet ring 16, and the four magnet rings 16 are respectively fixedly connected to the four U-shaped plates 3, and the four conical plug rods 9 are respectively fixedly installed with a magnet plate 17, and the four magnet plates 17 are respectively in contact with the four magnet rings 16.

[0034] In order to make the subsequent transmission between the worm 5 and the worm wheel 7 smoother, reduce the wear of the worm 5 and the worm wheel 7, and increase the service life, a lubricating oil cavity 23 is provided in the worm 5, and an air intake connection hole 30 is provided on the top inner wall of the lubricating oil cavity 23, and the air intake connection hole 30 is communicated with the storage groove, and a connecting rod 19 is movably installed in the air intake connection hole 30, and a rubber sealing ring 20 is fixedly sleeved on the connecting rod 19, and the rubber sealing ring 20 is slidably sealed and connected to the inner wall of the air intake connection hole 30, and the top end of the connecting rod 19 is fixedly connected to the limit plate 18, and the bottom end of the connecting rod 19 is fixedly installed with a cross bar 25 An annular rubber sealing ring 26 is fixedly mounted on the cross bar 25, and the annular rubber sealing ring 26 is slidingly sealedly connected to the inner wall of the lubricating oil cavity 23. Two oil outlet holes 24 are provided on the inner wall of the lubricating oil cavity 23. When the limit plate 18 moves upward, the connecting rod 19 is driven to move upward, and then the rubber sealing ring 20 moves upward out of the air inlet connecting hole 30, so that the annular rubber sealing ring 26 moves upward and separates from the oil outlet hole 24. At this moment, the outside air enters the lubricating oil cavity 23 through the air inlet connecting hole 30, so that the lubricating oil in the lubricating oil cavity 23 flows out through the oil outlet hole 24 and adheres to the surface of the worm 5.

[0035] The working principle of the steel cage for bored pile construction provided by the present invention is as follows: in the initial state, the lubricating oil cavity 23 is filled with lubricating oil, and the elastic pull rope 21 is in a stretched state. When the device needs to be used, the device is first lifted away from the ground by an external crane, and then the steel cage body 1 is slowly placed in the pile hole by the crane. When the steel cage body 1 contacts the bottom of the pile hole, the worm gear 7 should be located at the opening of the pile hole at this moment, and the rotating plate 15 is first moved upward away from the fixed pipe 13 to rotate the rotating plate 15, the rotating plate 15 moves upward to drive the connecting rod 10 to move upward, the connecting rod 10 moves upward to drive the limit plate 18 to move upward, the limit plate 18 moves upward to drive the connecting rod 19 to move upward, and then the rubber sealing ring 20 moves upward out of the air inlet connecting hole 30, so that the annular rubber sealing ring 26 moves upward and separates from the oil outlet hole 24. At this time, the outside air enters the lubricating oil cavity 23 through the air inlet connecting hole 30, so that the lubricating oil in the lubricating oil cavity 23 flows out through the oil outlet hole 24 and adheres to the volute The surface of the rod 5 is lubricated with oil to reduce the friction between the worm 5 and the worm wheel 7, thereby making the subsequent transmission between the worm 5 and the worm wheel 7 smoother, and then the rotating plate 15 is rotated, the rotating plate 15 rotates to drive the connecting rod 10 to rotate, the connecting rod 10 rotates to drive the limiting plate 18 to rotate, the limiting plate 18 rotates to drive the worm 5 to rotate, the worm 5 rotates to drive the worm wheel 7 to rotate, the worm wheel 7 rotates to drive the rotating rod 6 to rotate, the rotating rod 6 rotates to drive the U-shaped plate 3 to rotate, so that the U-shaped plate 3 changes from a vertical state to a horizontal state parallel to the ground, thereby making the conical plug rod 9 rotate to a state perpendicular to the ground, and then the staff uses an external hammer to hammer the impact plate 11 to insert the conical plug rod 9 into the ground, and the steel cage body 1 is limited by four conical plug rods 9, thereby making the steel cage body 1 fixedly installed on the ground, so that when people pour concrete, the steel cage body 1 will not float up and collide with the pile hole wall, thereby causing the steel bar bending and deformation accident, thereby ensuring the structural stability of the steel cage body 1.

[0036] Compared with the related art, the steel cage for bored pile construction provided by the present invention has the following advantages:

[0037] Beneficial effects:

[0038] The present invention provides a steel cage for bored pile construction. When the steel cage body 1 contacts the bottom of the pile hole, the rotating plate 15 is first moved upward away from the fixed pipe 13, so that the lubricating oil in the lubricating oil cavity 23 flows out through the oil outlet hole 24 and adheres to the surface of the worm 5, and the friction between the worm 5 and the worm wheel 7 is reduced by the lubricating oil, so that the subsequent transmission between the worm 5 and the worm wheel 7 is smoother, and the U-shaped plate 3 is changed from a vertical state to a horizontal state parallel to the ground by rotating the rotating plate 15, so that the conical plug rod 9 is rotated to a state perpendicular to the ground, and then the staff inserts the conical plug rod 9 into the ground by hammering the impact plate 11 through an external hammer, and limits the steel cage body 1 through four conical plug rods 9, so that the steel cage body 1 is fixedly installed on the ground, so that when people pour concrete, the steel cage body 1 will not float up and collide with the pile hole wall, thereby causing the accident of bending and deformation of the steel bars, thereby ensuring the structural stability of the steel cage body 1.

[0039] The present invention also provides a method for anti-deformation installation of a steel cage for bored pile construction, comprising the following steps:

[0040] S1: First, the device is lifted away from the ground by an external crane, and then the steel cage body 1 is slowly placed into the pile hole by the crane;

[0041] S2: First, move the rotating plate 15 upward away from the fixed tube 13, so that the rubber sealing ring 20 moves upward out of the air inlet connecting hole 30, so that the annular rubber sealing ring 26 moves upward and separates from the oil outlet hole 24, so that the lubricating oil in the lubricating oil cavity 23 flows out through the oil outlet hole 24 and adheres to the surface of the worm 5;

[0042] S3: The rotating plate 15 is rotated to drive the U-shaped plate 3 from a vertical state to a horizontal state parallel to the ground, thereby rotating the conical plug rod 9 to a state perpendicular to the ground;

[0043] S4: Using an external hammer to hit the impact plate 11, the conical rod 9 is inserted into the ground to limit the steel cage body 1, thereby fixing the steel cage body 1 on the ground.

[0044] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A steel cage for bored pile construction, comprising two mounting plates fixedly mounted in a steel cage body, characterized in that: A fixing tube is fixedly installed on the outer wall of one side where the two mounting plates are close to each other, and four through holes are opened on the fixing tube, and rotating rods are rotatably installed in the four through holes respectively, and a plurality of the rotating rods are respectively fixedly sleeved with U-shaped plates and worm gears, and the four worm gears are respectively located in the four U-shaped plates, and conical plug rods are respectively slidably installed on the four U-shaped plates, and impact plates are respectively fixedly installed at one end of the four conical plug rods, and a fixing plate is fixedly installed in the fixing tube, and a worm is rotatably installed on the fixing plate, and the worm is meshed with the four worm gears.

2. The steel cage for bored pile construction according to claim 1, characterized in that: A storage groove is provided at the top of the worm gear, and two elastic pull ropes are fixedly installed on the bottom inner wall of the storage groove. A limiting plate is fixedly installed on the top of the two elastic pull ropes, and the limiting plate is slidably connected to the inner wall of the storage groove. A connecting rod is fixedly installed on the top of the limiting plate, and a rotating plate is fixedly installed on the top of the connecting rod.

3. The steel cage for bored pile construction according to claim 2, characterized in that: The four conical plug rods are respectively movably sleeved with magnet rings, and the four magnet rings are respectively fixedly connected to the four U-shaped plates; the four conical plug rods are respectively fixedly mounted with magnet plates, and the four magnet plates are respectively in contact with the four magnet rings.

4. The steel cage for bored pile construction according to claim 3, characterized in that: Two limiting grooves are arranged on the inner wall of the receiving groove, and two sides of the limiting plate extend into the two limiting grooves respectively and are slidably connected with the inner walls of the two limiting grooves respectively.

5. The steel reinforcement cage for bored pile construction according to claim 4, characterized in that: Arc-shaped protective plates are respectively fixedly installed in the four U-shaped plates.

6. The steel reinforcement cage for bored pile construction according to claim 5, characterized in that: A lubricating oil cavity is provided in the worm gear, an air intake connecting hole is provided on the top inner wall of the lubricating oil cavity, and the air intake connecting hole is communicated with the receiving groove, a connecting rod is movably installed in the air intake connecting hole, a rubber sealing ring is fixedly sleeved on the connecting rod, and the rubber sealing ring is slidingly and sealingly connected to the inner wall of the air intake connecting hole, and the top end of the connecting rod is fixedly connected to the limiting plate, a cross bar is fixedly installed on the bottom end of the connecting rod, an annular rubber sealing ring is fixedly installed on the cross bar, and the annular rubber sealing ring is slidingly and sealingly connected to the inner wall of the lubricating oil cavity, and two oil outlet holes are provided on the inner wall of the lubricating oil cavity.

7. The steel reinforcement cage for bored pile construction according to claim 6, characterized in that: The fixing plate is provided with a through hole, a rotating bearing is fixedly installed in the through hole, and the worm passes through the rotating bearing and is fixedly connected to the inner wall of the rotating bearing.

8. The steel reinforcement cage for bored pile construction according to claim 7, characterized in that: The four U-shaped plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the four through holes. The four tapered rods respectively penetrate the four linear bearings and are respectively slidably connected to the inner walls of the four linear bearings.

9. A method for anti-deformation installation of a steel cage for bored pile construction, characterized in that: The steel cage for bored pile construction according to any one of claims 1 to 8 is adopted, comprising the following steps: S1: First, lift the device away from the ground by an external crane, and then slowly place the steel cage body into the pile hole by the crane; S2: First, move the rotating plate upward away from the fixed pipe, so that the rubber sealing ring moves upward out of the air inlet connection hole, so that the annular rubber sealing ring moves upward and separates from the oil outlet hole, and the lubricating oil in the lubricating oil cavity flows out through the oil outlet hole and adheres to the surface of the worm; S3: The U-shaped plate is driven to change from a vertical state to a horizontal state parallel to the ground by rotating the rotating plate, thereby rotating the conical plug rod to a state perpendicular to the ground; S4: The conical rod is inserted into the ground by hammering the impact plate with an external hammer to limit the steel cage body, thereby fixing the steel cage body on the ground.

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