A steel cage anti-deviation device for pile foundation pouring under complex conditions

Abstract

The present invention provides a steel cage anti-displacement device for pile foundation pouring under complex conditions, which belongs to the technical field of bored pile construction. Its technical solution is as follows: it includes a vertical connecting rod, and one side of the outer side of the vertical connecting rod is respectively provided with a coaxial upper end hanging bar movable ring and a lower end hanging bar movable ring, and the other side of the outer side of the vertical connecting rod is respectively provided with an upper end lateral limit and a lower end lateral limit used in conjunction with the inner wall of the casing, and the side of the upper end lateral limit away from the vertical connecting rod is provided with a casing end clamping structure. The beneficial effect of the present invention is that it can solve the technical problem of steel cage displacement during concrete pouring. During the construction process, the steel cage hanging bars are confined in a closed space formed by the vertical limit buckle, the vertical connecting rod and the hanging bar movable ring, and the steel grate will not be displaced or the hanging bars will not be displaced due to the vibration of the vibrator and the repeated removal of the catheter during the concrete pouring process.

Description

Technical Field

[0001] The invention relates to the technical field of cast-in-place pile construction, in particular to a steel cage anti-deviation device for pile foundation pouring under complex conditions. Background Art

[0002] Bored cast-in-place piles are a common and frequently used pile type in current construction projects. Their construction process requires drilling holes on site, installing a steel cage, and pouring concrete. Usually, the diameter of the cast-in-place pile is large. After the center point of the steel cage is verified and determined, large-diameter hangers are generally used on site to hang the steel cage and fix it on the steel grate placed on the top of the casing.

[0003] Due to the large pile diameters in mountainous areas, conventional methods for controlling the deflection of the steel cage can lead to displacement of the steel grate and deflection of the hanger bars due to vibrator tamping and repeated removal of the guide tube during concrete pouring. This prevents effective control of pile position deviation, thus affecting the overall quality of the pile. Re-measuring the pile position deviation each time the guide tube is removed wastes human resources and increases the complexity of on-site construction. Furthermore, the deflection caused by vibration during concrete pouring cannot be controlled. Therefore, the present invention provides a steel cage anti-deflection device for pile foundation pouring under complex conditions. Summary of the Invention

[0004] The object of the present invention is to provide a steel cage anti-deflection device for pile foundation pouring under complex conditions, which is simple to operate and can prevent the steel cage from deflecting.

[0005] The present invention is achieved by the following measures:

[0006] A steel cage anti-deviation device for pile foundation casting under complex conditions is characterized in that it includes a vertical connecting rod, and one side of the outer side surface of the vertical connecting rod is respectively provided with a coaxial upper end hanging rod movable ring and a lower end hanging rod movable ring, and the other side of the outer side surface of the vertical connecting rod is respectively provided with an upper end lateral limit and a lower end lateral limit used in conjunction with the inner wall surface of the casing, and the upper end lateral limit is provided with a casing end clamping structure on the side away from the vertical connecting rod, the upper end hanging rod movable ring and the lower end hanging rod movable ring are circular rings with diameters slightly larger than the steel cage hanging rod, and the steel cage hanging rod is inserted into the upper end hanging rod movable ring and the lower end hanging rod movable ring to be connected to the entire anti-deviation device as a whole.

[0007] The specific features of the present invention also include:

[0008] The upper end lateral limit includes a long rod arranged on the vertical connecting rod, and a vertical rod 1 is arranged vertically downward and parallel to the vertical connecting rod on the lower side of the long rod, and several groups of reinforcing ribs are arranged between the vertical rod 1 and the vertical connecting rod.

[0009] The lower end lateral limit includes an arc-shaped rod horizontally arranged on the side of the vertical connecting rod through a pair of auxiliary rods, the projection of the vertical rod 1 falls on the middle part of the arc-shaped rod and the outermost end of the middle part of the arc-shaped rod is aligned with the outermost end of the vertical rod 1 away from the vertical connecting rod. When the upper end lateral limit and the lower end lateral limit are both abutted against the inner wall of the casing, the verticality of the vertical connecting rod can be guaranteed, that is, the verticality of the steel cage can be guaranteed.

[0010] The casing end clamping structure includes a second vertical rod arranged vertically downward on the long rod, the first vertical rod and the second vertical rod form a clamping groove, and the upper end wall surface of the casing is clamped in the clamping groove.

[0011] The peripheries of the vertical rod 1 and the vertical rod 2, as well as the peripheries of the vertical connecting rod and the steel cage hanging bar are all provided with vertical limiting buckles for connection and fixation. The casing is provided with a lifting ear with a through-hole structure. When the upper end wall surface of the casing is clamped in the clamping groove, a part of the vertical rod 1 and the vertical rod 2 is exactly at the lifting ear. The vertical limiting buckle is passed through the lifting ear and fixed to the periphery of the vertical rod 1 and the vertical rod 2;

[0012] The vertical limit buckle includes a U-shaped block 1 and a U-shaped block 2. A through hole is provided on one side of the U-shaped block 1. A round rod is slidably provided in the through hole. One end of the round rod passes through the through hole and is provided on one side of the U-shaped block 2. The other end of the round rod is provided with a handle.

[0013] The other side of the U-shaped block one is provided with a through threaded hole, and a matching screw rod is provided through the threaded hole, and retractable clamping rods are provided on both sides of the inner end of the screw rod facing the U-shaped block two. A circular hole is provided on the U-shaped block two to cooperate with the screw rod, and a circular clamping groove is provided in the circular hole to cooperate with the retractable clamping rod and has a diameter larger than the circular hole. After the screw rod is inserted into the circular hole, the retractable clamping rod is clamped in the circular clamping groove, and then the screw rod is rotated outward, so that the U-shaped block two moves toward the U-shaped block one, thereby realizing the clamping and fixation of the vertical rod one and the vertical rod two or the vertical connecting rod and the steel cage suspension bar.

[0014] A circular groove is provided on the inner end surface of the screw rod, and a pair of circular holes penetrating the screw rod are symmetrically provided on the wall surface of the circular groove;

[0015] The retractable clamping rod includes a circular rod slidably arranged in the circular hole, a circular plate is provided at the inner end of the circular rod in the circular groove, a spring is provided on the periphery of the circular rod, one end of the spring is fixed to the circular plate, and the other end of the spring is fixed to the inner wall surface of the circular groove;

[0016] A long rod is coaxially rotated inside the screw rod, and after the inner end of the long rod is deeply inserted into the circular groove, a pair of arc-shaped protrusions are provided which can simultaneously push out the outer ends of the circular rods on both sides after rotation. When the long rod is rotated, the arc-shaped protrusions on both sides will press against the circular plate, and then the outer ends of the circular rods on both sides will be pushed out of the circular holes, thereby being stuck in the circular slot;

[0017] A circular plate is provided after the outer end of the long rod passes through the screw rod, and a limiting bolt is provided on the circular plate through a threaded structure. The corresponding screw rod end surface is provided with a socket that cooperates with the limiting bolt. When the limiting bolt is rotated to the socket position, the arc-shaped protrusion just pushes out the outer ends of the circular rods on both sides and is stuck in the circular groove, and then the limiting bolt is tightened into the socket to achieve locking.

[0018] The circular plate is provided with a chamfer that matches the arc-shaped protrusion, and the circular rod can be easily ejected through the setting of the chamfer;

[0019] The outer end of the screw rod is provided with a rotating handle, and the screw rod can be rotated by the rotating handle;

[0020] A positioning block is provided on the outer side of the U-shaped block 1 away from the U-shaped block 2 through an auxiliary rod, and a positioning groove is provided on the positioning block. A positioning plate that cooperates with the positioning groove is provided on the side of the round rod, and a triangular guide plate is provided on the side of the positioning plate facing the positioning groove. The positioning plate can be smoothly slid into the positioning groove through the triangular guide plate. At this time, the screw rod is just aligned with the circular hole, so that the inner end of the screw rod can be smoothly inserted into the circular hole.

[0021] The upper end suspension rod movable ring and the lower end suspension rod movable ring both include a semi-arc rod 1 arranged on the outer side surface of the vertical connecting rod, and a semi-arc rod 2 is slidably arranged inside the semi-arc rod 1. After the semi-arc rod 2 slides, it forms a complete circular ring structure with the semi-arc rod 1. In this embodiment, the arc length of the semi-arc rod 2 is greater than the arc length of the semi-arc rod 1 to ensure that the semi-arc rod 1 and the semi-arc rod 2 form a complete circular ring structure.

[0022] The upper side of the outer surface of the semicircular arc rod is provided with an arc groove that passes through the interior, and the semicircular arc rod is provided with a threaded rod that cooperates with the arc groove. The upper side end of the threaded rod is provided with a handle second after passing through the arc groove, and the semicircular arc rod second can be slid through the handle second to form a complete circular ring structure with the semicircular arc rod first;

[0023] A matching limiting nut is provided on the periphery of the threaded rod, and a limiting groove matching the limiting nut is provided at the corresponding end of the corresponding arc groove. When the semi-circular arc rod 2 slides to form a complete circular ring structure with the semi-circular arc rod 1, the limiting nut is just above the limiting groove. Then the limiting nut is rotated to fall into the limiting groove, thereby achieving the maintenance of the circular ring structure.

[0024] The specific construction method of the steel cage anti-deviation device comprises the following steps:

[0025] S1. Attach the two sets of anti-deflection devices to the steel cage suspension bars on both sides of the steel cage through the upper suspension bar movable ring and the lower suspension bar movable ring, and fix them through the corresponding vertical limit buckles;

[0026] S2. Drill the pile foundation hole on site, and then lower the steel cage into the pile foundation hole until it reaches the set elevation;

[0027] S3, clamping the two sets of the anti-deflection devices at the two side ears of the casing through the casing end clamping structure, and fixing them with the corresponding vertical limiting buckles, so that the reinforcement cage hanging bars are finally limited;

[0028] S4. Check the center deviation of the steel cage and install the steel grate and hopper;

[0029] S5. Pour concrete into the pile foundation hole until pouring is completed, and then remove the concrete hopper and steel grate;

[0030] S6. Remove the vertical limit buckle to release the limit of the anti-deviation device on the reinforcement cage suspension bar, and then extract the anti-deviation device upward until it is completely removed.

[0031] The beneficial effects of the present invention are:

[0032] Compared with the existing technology, the steel cage anti-deviation device for pile foundation pouring under complex conditions provided by the present invention is:

[0033] (1) It can solve the technical problem of steel cage deviation during concrete pouring;

[0034] (2) With the help of accurate positioning of the casing, installing the device on the casing can improve work efficiency;

[0035] (3) During the construction process, the steel cage suspension bars are confined in a closed space formed by the vertical limit buckle 4, the vertical connecting rod and the suspension bar movable ring. The vibrator vibration and repeated removal of the guide tube during the concrete pouring process will not cause the steel grate to move or the suspension bar to deviate.

[0036] (4) The anti-deflection device can be disassembled and reused;

[0037] (5) After the device is placed, it is located below the top of the casing and does not affect the concrete pouring construction. At the same time, the device is made of on-site steel waste, which improves the utilization rate of on-site waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention.

[0039] Figure 2 for Figure 1 A magnified view of center.

[0040] Figure 3 2 is a schematic structural diagram of a partial cross-section of a vertical limit buckle in an embodiment of the present invention.

[0041] Figure 4 Schematic diagram of the screw rod structure in an embodiment of the present invention.

[0042] Figure 5 Schematic diagram of the relevant structure of the long rod in an embodiment of the present invention.

[0043] Figure 6 Schematic diagram of the circular rod structure in an embodiment of the present invention.

[0044] Figure 7 Schematic diagram of the circular groove related structure in an embodiment of the present invention.

[0045] Figure 8 Schematic diagram of the related structures of the semicircular arc rod 1 and the semicircular arc rod 2 in an embodiment of the present invention.

[0046] Figure 9 Schematic diagram of the construction of an embodiment of the present invention.

[0047] The accompanying drawings are marked as follows: 1. Upper end lateral limit; 2. Lower end lateral limit; 3. U-shaped block 2; 4. Vertical limit buckle; 5. Casing end clamping structure; 6. Vertical connecting rod; 7. Upper end hanging bar movable ring; 8. Lower end hanging bar movable ring; 9. Steel cage hanging bar; 10. Casing; 11. Circular slot; 12. Circular hole; 13. U-shaped block 1; 14. Screw; 15. Rotating handle; 16. Circular plate; 17. Limit bolt; 18 , positioning block; 19. triangular guide plate; 20. positioning plate; 21. round rod; 22. round rod; 23. arc-shaped protrusion; 24. spring; 25. long rod; 26. round plate; 27. round groove; 28. round hole; 29. arc-shaped groove; 30. semicircular arc rod one; 31. threaded rod; 32. limiting nut; 33. limiting groove; 34. semicircular arc rod two; 35. vertical rod one; 36. vertical rod two; 37. steel grate; 38. hopper. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0052] Example 1

[0053] See also Figure 1-8 , a steel cage anti-deflection device for pile foundation pouring under complex conditions, including a vertical connecting rod 6, one side of the outer side surface of the vertical connecting rod 6 is respectively provided with a coaxial upper end hanging rod movable ring 7 and a lower end hanging rod movable ring 8, the other side of the outer side surface of the vertical connecting rod 6 is respectively provided with an upper end lateral limit 1 and a lower end lateral limit 2 used in conjunction with the inner wall of the casing 10, the upper end lateral limit 1 is provided with a casing end clamping structure 5 on the side away from the vertical connecting rod 6, the upper end hanging rod movable ring 7 and the lower end hanging rod movable ring 8 are circular rings with a diameter slightly larger than the steel cage hanging rod 9, the steel cage hanging rod 9 is inserted into the upper end hanging rod movable ring 7 and the lower end hanging rod movable ring 8, thereby being connected to the entire anti-deflection device as a whole.

[0054] The upper end lateral limiter 1 includes a long rod arranged on the vertical connecting rod 6, and a vertical rod 35 is arranged on the lower side of the long rod, which is vertically downward and parallel to the vertical connecting rod 6. Several groups of reinforcing ribs are arranged between the vertical rod 35 and the vertical connecting rod 6.

[0055] The lower end lateral limit 2 includes an arc-shaped rod horizontally arranged on the side of the vertical connecting rod 6 through a pair of auxiliary rods. The projection of the vertical rod 35 falls on the middle part of the arc-shaped rod and the outermost end of the middle part of the arc-shaped rod is aligned with the outermost end of the vertical rod 35 away from the vertical connecting rod 6. When the upper end lateral limit 1 and the lower end lateral limit 2 are both abutted against the inner wall of the casing 10, the verticality of the vertical connecting rod 6 can be guaranteed, that is, the verticality of the steel cage can be guaranteed.

[0056] The casing end locking structure 5 includes a second vertical rod 36 vertically downwardly arranged on the long rod. The first vertical rod 35 and the second vertical rod 36 form a locking groove, and the upper end wall of the casing 10 is locked in the locking groove.

[0057] The periphery of the vertical rod 1 35 and the vertical rod 2 36 as well as the periphery of the vertical connecting rod 6 and the steel cage hanging bar 9 are all provided with vertical limit buckles 4 for connection and fixation. The casing 10 is provided with a lifting ear with a through-hole structure. When the upper end wall surface of the casing 10 is clamped in the clamping groove, a part of the vertical rod 1 35 and the vertical rod 2 36 is exactly at the lifting ear. The vertical limit buckle 4 is passed through the lifting ear and fixed to the periphery of the vertical rod 1 35 and the vertical rod 2 36;

[0058] The vertical limit buckle 4 includes a U-shaped block 13 and a U-shaped block 2 3. A through hole is provided on one side of the U-shaped block 13. A round rod 21 is slidably provided in the through hole. One end of the round rod 21 passes through the through hole and is provided on one side of the U-shaped block 2 3. The other end of the round rod 21 is provided with a handle.

[0059] A through threaded hole is provided on the other side of the U-shaped block 13, and a matching screw rod 14 is provided through the threaded hole. Retractable clamping rods are provided on both sides of the inner end of the screw rod 14 facing the U-shaped block 2 3. A circular hole 12 is provided on the U-shaped block 2 3 to cooperate with the screw rod 14, and a circular clamping groove 11 is provided in the circular hole 12 to cooperate with the retractable clamping rod and with a diameter larger than the circular hole 12. After the screw rod 14 is inserted into the circular hole 12, the retractable clamping rod is clamped in the circular clamping groove 11, and then the screw rod 14 is rotated outward, so that the U-shaped block 2 3 moves toward the U-shaped block 13, thereby realizing the clamping and fixation of the vertical rod 1 35 and the vertical rod 2 36 or the vertical connecting rod 6 and the steel cage suspension bar 9.

[0060] A circular groove 27 is provided on the inner end surface of the screw rod 14, and a pair of circular holes 28 penetrating the screw rod 14 are symmetrically provided on the wall surface of the circular groove 27;

[0061] The retractable clamping rod includes a circular rod 22 slidably disposed in a circular hole 28. A circular plate 26 is disposed at the inner end of the circular rod 22 in the circular groove 27. A spring 24 is disposed on the outer periphery of the circular rod 22. One end of the spring 24 is fixed to the circular plate 26, and the other end of the spring 24 is fixed to the inner wall surface of the circular groove 27.

[0062] A long rod 25 is coaxially rotated inside the screw rod 14. After the inner end of the long rod 25 is inserted into the circular groove 27, a pair of arc-shaped protrusions 23 are provided, which can simultaneously push out the outer ends of the circular rods 22 on both sides when rotated. When the long rod 25 is rotated, the arc-shaped protrusions 23 on both sides will abut against the circular plate 26, and then push the outer ends of the circular rods 22 on both sides out of the circular holes 28, thereby being stuck in the circular slot 11;

[0063] A circular plate 16 is provided after the outer end of the long rod 25 passes through the screw rod 14, and a limit bolt 17 is provided on the circular plate 16 through a threaded structure. The corresponding end face of the screw rod 14 is provided with a socket that cooperates with the limit bolt 17. When the limit bolt 17 is rotated to the socket position, the arc-shaped protrusion 23 just pushes out the outer ends of the circular rods 22 on both sides and is stuck in the circular slot 11, and then the limit bolt 17 is tightened into the socket to achieve locking.

[0064] The circular plate 26 is provided with a chamfer that matches the arc-shaped protrusion 23, and the chamfer can facilitate the ejection of the circular rod 22;

[0065] A rotating handle 15 is provided at the outer end of the screw rod 14, and the screw rod 14 can be rotated by rotating the handle 15;

[0066] A positioning block 18 is provided on the outer side of the U-shaped block 13 away from the U-shaped block 2 3 through an auxiliary rod. A positioning groove is provided on the positioning block 18. A positioning plate 20 that cooperates with the positioning groove is provided on the side of the round rod 21. A triangular guide plate 19 is provided on the side of the positioning plate 20 facing the positioning groove. The positioning plate 20 can be smoothly slid into the positioning groove through the triangular guide plate 19. At this time, the screw rod 14 is just aligned with the circular hole 12, so that the inner end of the screw rod 14 can be smoothly inserted into the circular hole 12.

[0067] The upper end suspension rod movable ring 7 and the lower end suspension rod movable ring 8 both include a semicircular arc rod 30 arranged on the outer side of the vertical connecting rod 6, and a semicircular arc rod 2 34 is slidably arranged inside the semicircular arc rod 1 30. After the semicircular arc rod 2 34 slides, it forms a complete circular ring structure with the semicircular arc rod 1 30. In this embodiment, the arc length of the semicircular arc rod 2 34 is greater than the arc length of the semicircular arc rod 1 30 to ensure that the semicircular arc rod 1 30 and the semicircular arc rod 2 34 form a complete circular ring structure.

[0068] The outer side of the semicircular arc rod 1 30 is provided with an arc groove 29 that passes through the interior. The semicircular arc rod 2 34 is provided with a threaded rod 31 that cooperates with the arc groove 29. The upper end of the threaded rod 31 passes through the arc groove 29 and is provided with a handle 2. The semicircular arc rod 2 34 can be slid through the handle 2 to form a complete circular ring structure with the semicircular arc rod 1 30.

[0069] A matching limiting nut 32 is provided on the periphery of the threaded rod 31, and a limiting groove 33 matching with the limiting nut 32 is provided at the corresponding end of the corresponding arc groove 29. When the semi-circular arc rod 2 34 slides to form a complete circular ring structure with the semi-circular arc rod 1 30, the limiting nut 32 is just above the limiting groove 33. Then the limiting nut 32 is rotated to fall into the limiting groove 33, thereby achieving the maintenance of the circular ring structure.

[0070] Example 2

[0071] See also Figure 1-9 A steel cage anti-deflection device for pile foundation pouring under complex conditions, comprising a vertical connecting rod 6, one side of the outer side surface of the vertical connecting rod 6 is respectively provided with a coaxial upper end hanging rod movable ring 7 and a lower end hanging rod movable ring 8, the other side of the outer side surface of the vertical connecting rod 6 is respectively provided with an upper end lateral limit 1 and a lower end lateral limit 2 used in conjunction with the inner wall surface of the casing 10, the upper end lateral limit 1 is provided with a casing end clamping structure 5 on the side away from the vertical connecting rod 6, the upper end hanging rod movable ring 7 and the lower end hanging rod movable ring 8 are circular rings with a diameter slightly larger than the steel cage hanging rod 9, the steel cage hanging rod 9 is inserted into the upper end hanging rod movable ring 7 and the lower end hanging rod movable ring 8, thereby being connected to the entire anti-deflection device as a whole.

[0072] The upper end lateral limiter 1 includes a long rod arranged on the vertical connecting rod 6, and a vertical rod 35 is arranged on the lower side of the long rod, which is vertically downward and parallel to the vertical connecting rod 6. Several groups of reinforcing ribs are arranged between the vertical rod 35 and the vertical connecting rod 6.

[0073] The lower end lateral limit 2 includes an arc-shaped rod horizontally arranged on the side of the vertical connecting rod 6 through a pair of auxiliary rods. The projection of the vertical rod 35 falls on the middle part of the arc-shaped rod and the outermost end of the middle part of the arc-shaped rod is aligned with the outermost end of the vertical rod 35 away from the vertical connecting rod 6. When the upper end lateral limit 1 and the lower end lateral limit 2 are both abutted against the inner wall of the casing 10, the verticality of the vertical connecting rod 6 can be guaranteed, that is, the verticality of the steel cage can be guaranteed.

[0074] The casing end locking structure 5 includes a second vertical rod 36 arranged vertically downward on the long rod. The first vertical rod 35 and the second vertical rod 36 form a locking groove, and the upper end wall of the casing 10 is locked in the locking groove.

[0075] The periphery of the vertical rod 1 35 and the vertical rod 2 36 as well as the periphery of the vertical connecting rod 6 and the steel cage hanging bar 9 are all provided with vertical limit buckles 4 for connection and fixation. The casing 10 is provided with a lifting ear with a through-hole structure. When the upper end wall surface of the casing 10 is clamped in the clamping groove, a part of the vertical rod 1 35 and the vertical rod 2 36 is exactly at the lifting ear. The vertical limit buckle 4 is passed through the lifting ear and fixed to the periphery of the vertical rod 1 35 and the vertical rod 2 36;

[0076] The vertical limit buckle 4 includes a U-shaped block 13 and a U-shaped block 2 3. A through hole is provided on one side of the U-shaped block 13. A round rod 21 is slidably provided in the through hole. One end of the round rod 21 passes through the through hole and is provided on one side of the U-shaped block 2 3. The other end of the round rod 21 is provided with a handle.

[0077] A through threaded hole is provided on the other side of the U-shaped block 13, and a matching screw rod 14 is provided through the threaded hole. Retractable clamping rods are provided on both sides of the inner end of the screw rod 14 facing the U-shaped block 2 3. A circular hole 12 is provided on the U-shaped block 2 3 to cooperate with the screw rod 14, and a circular clamping groove 11 is provided in the circular hole 12 to cooperate with the retractable clamping rod and with a diameter larger than the circular hole 12. After the screw rod 14 is inserted into the circular hole 12, the retractable clamping rod is clamped in the circular clamping groove 11, and then the screw rod 14 is rotated outward, so that the U-shaped block 2 3 moves toward the U-shaped block 13, thereby realizing the clamping and fixation of the vertical rod 1 35 and the vertical rod 2 36 or the vertical connecting rod 6 and the steel cage suspension bar 9.

[0078] A circular groove 27 is provided on the inner end surface of the screw rod 14, and a pair of circular holes 28 penetrating the screw rod 14 are symmetrically provided on the wall surface of the circular groove 27;

[0079] The retractable clamping rod includes a circular rod 22 slidably disposed in a circular hole 28. A circular plate 26 is disposed at the inner end of the circular rod 22 in the circular groove 27. A spring 24 is disposed on the outer periphery of the circular rod 22. One end of the spring 24 is fixed to the circular plate 26, and the other end of the spring 24 is fixed to the inner wall surface of the circular groove 27.

[0080] A long rod 25 is coaxially rotated inside the screw rod 14. After the inner end of the long rod 25 is inserted into the circular groove 27, a pair of arc-shaped protrusions 23 are provided, which can simultaneously push out the outer ends of the circular rods 22 on both sides when rotated. When the long rod 25 is rotated, the arc-shaped protrusions 23 on both sides will abut against the circular plate 26, and then push the outer ends of the circular rods 22 on both sides out of the circular holes 28, thereby being stuck in the circular slot 11;

[0081] A circular plate 16 is provided after the outer end of the long rod 25 passes through the screw rod 14, and a limit bolt 17 is provided on the circular plate 16 through a threaded structure. The corresponding end face of the screw rod 14 is provided with a socket that cooperates with the limit bolt 17. When the limit bolt 17 is rotated to the socket position, the arc-shaped protrusion 23 just pushes out the outer ends of the circular rods 22 on both sides and is stuck in the circular slot 11, and then the limit bolt 17 is tightened into the socket to achieve locking.

[0082] The circular plate 26 is provided with a chamfer that matches the arc-shaped protrusion 23, and the chamfer can facilitate the ejection of the circular rod 22;

[0083] A rotating handle 15 is provided at the outer end of the screw rod 14, and the screw rod 14 can be rotated by rotating the handle 15;

[0084] A positioning block 18 is provided on the outer side of the U-shaped block 13 away from the U-shaped block 2 3 through an auxiliary rod. A positioning groove is provided on the positioning block 18. A positioning plate 20 that cooperates with the positioning groove is provided on the side of the round rod 21. A triangular guide plate 19 is provided on the side of the positioning plate 20 facing the positioning groove. The positioning plate 20 can be smoothly slid into the positioning groove through the triangular guide plate 19. At this time, the screw rod 14 is just aligned with the circular hole 12, so that the inner end of the screw rod 14 can be smoothly inserted into the circular hole 12.

[0085] The upper end suspension rod movable ring 7 and the lower end suspension rod movable ring 8 both include a semicircular arc rod 30 arranged on the outer side of the vertical connecting rod 6, and a semicircular arc rod 2 34 is slidably arranged inside the semicircular arc rod 1 30. After the semicircular arc rod 2 34 slides, it forms a complete circular ring structure with the semicircular arc rod 1 30. In this embodiment, the arc length of the semicircular arc rod 2 34 is greater than the arc length of the semicircular arc rod 1 30 to ensure that the semicircular arc rod 1 30 and the semicircular arc rod 2 34 form a complete circular ring structure.

[0086] The outer side of the semicircular arc rod 1 30 is provided with an arc groove 29 that passes through the interior. The semicircular arc rod 2 34 is provided with a threaded rod 31 that cooperates with the arc groove 29. The upper end of the threaded rod 31 passes through the arc groove 29 and is provided with a handle 2. The semicircular arc rod 2 34 can be slid through the handle 2 to form a complete circular ring structure with the semicircular arc rod 1 30.

[0087] A matching limiting nut 32 is provided on the periphery of the threaded rod 31, and a limiting groove 33 matching with the limiting nut 32 is provided at the corresponding end of the corresponding arc groove 29. When the semi-circular arc rod 2 34 slides to form a complete circular ring structure with the semi-circular arc rod 1 30, the limiting nut 32 is just above the limiting groove 33. Then the limiting nut 32 is rotated to fall into the limiting groove 33, thereby achieving the maintenance of the circular ring structure.

[0088] The specific construction method of the steel cage anti-deflection device includes the following steps:

[0089] S1. Attach the two sets of anti-deflection devices to the steel cage suspension bars 9 on both sides of the steel cage through the upper suspension bar movable ring 7 and the lower suspension bar movable ring 8, and fix them through the corresponding vertical limit buckles 4;

[0090] S2. Drill the pile foundation hole on site, and then lower the steel cage into the pile foundation hole until it reaches the set elevation;

[0091] S3, clamp the two sets of anti-deflection devices at the two side ears of the casing 10 through the casing end clamping structure 5, and fix them with corresponding vertical limiting buckles 4, so that the steel cage hanging bars 9 are finally limited;

[0092] S4, review the center deviation of the steel cage and install the steel grate 37 and the hopper 38;

[0093] S5, pouring concrete into the pile foundation hole until the pouring is completed, and then removing the concrete hopper 38 and the steel grate 37;

[0094] S6. Remove the vertical limit buckle 4, release the limit of the anti-deflection device on the steel cage suspension bar 9, and then extract the anti-deflection device upward until it is completely removed.

[0095] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A steel cage anti-deflection device for pile foundation pouring under complex conditions, characterized in that: It comprises a vertical connecting rod (6), one side of the outer side of the vertical connecting rod (6) is provided with a coaxial upper end hanging rod movable ring (7) and a lower end hanging rod movable ring (8), the other side of the outer side of the vertical connecting rod (6) is provided with an upper end lateral limiter (1) and a lower end lateral limiter (2) used in conjunction with the inner wall surface of the casing (10), and a casing end clamping structure (5) is provided on the side of the upper end lateral limiter (1) away from the vertical connecting rod (6); The upper end lateral limiter (1) comprises a long rod arranged on the vertical connecting rod (6), a vertical rod (35) vertically downward and parallel to the vertical connecting rod (6) is arranged on the lower side of the long rod, and a plurality of groups of reinforcing ribs are arranged between the vertical rod (35) and the vertical connecting rod (6); The lower end lateral limiter (2) comprises an arc-shaped rod transversely arranged on the side of the vertical connecting rod (6) through a pair of auxiliary rods, the projection of the vertical rod (35) falls on the middle part of the arc-shaped rod and the outermost end of the middle part of the arc-shaped rod is aligned with the outermost end of the vertical rod (35) away from the vertical connecting rod (6); The casing end locking structure (5) comprises a second vertical rod (36) arranged vertically downward on a long rod, the first vertical rod (35) and the second vertical rod (36) forming a locking groove, and the upper end wall surface of the casing (10) is locked in the locking groove.

2. The anti-deflection device for steel cage used for pile foundation pouring under complex conditions according to claim 1 is characterized in that: The peripheries of the vertical rod 1 (35) and the vertical rod 2 (36), as well as the peripheries of the vertical connecting rod (6) and the steel cage suspension bar (9) are all provided with vertical limiting buckles (4) for connection and fixation; The vertical limit buckle (4) comprises a U-shaped block 1 (13) and a U-shaped block 2 (3), one side of the U-shaped block 1 (13) is provided with a through hole, a round rod (21) is slidably provided in the through hole, one end of the round rod (21) passes through the through hole and is provided on one side of the U-shaped block 2 (3), and the other end of the round rod (21) is provided with a handle; A through threaded hole is provided on the other side of the U-shaped block 1 (13), and a matching screw rod (14) is provided through the threaded hole. A retractable clamping rod is provided on both sides of the inner end of the screw rod (14) facing the U-shaped block 2 (3). A circular hole (12) matching with the screw rod (14) is provided on the U-shaped block 2 (3), and a circular clamping groove (11) matching with the retractable clamping rod and having a diameter larger than the circular hole (12) is provided in the circular hole (12).

3. The anti-deflection device for steel cage used for pile foundation pouring under complex conditions according to claim 2 is characterized in that: A circular groove (27) is provided on the inner end surface of the screw rod (14), and a pair of circular holes (28) penetrating the screw rod (14) are symmetrically provided on the wall surface of the circular groove (27); The retractable clamping rod comprises a circular rod (22) slidably arranged in the circular hole (28), a circular plate (26) is provided at the inner end of the circular rod (22) in the circular groove (27), a spring (24) is provided on the periphery of the circular rod (22), one end of the spring (24) is fixed on the circular plate (26), and the other end of the spring (24) is fixed on the inner wall surface of the circular groove (27); A long bar (25) is coaxially rotated inside the screw rod (14), and the inner end of the long bar (25) is inserted into the circular groove (27) and is provided with a pair of arc-shaped protrusions (23) that can simultaneously push out the outer ends of the circular rods (22) on both sides after rotation; A circular plate (16) is provided at the outer end of the long rod (25) after passing through the screw rod (14); a limiting bolt (17) is provided on the circular plate (16) through a threaded structure; and a corresponding insertion hole is provided on the end face of the screw rod (14) to cooperate with the limiting bolt (17).

4. The anti-deflection device for steel cage used for pile foundation pouring under complex conditions according to claim 3 is characterized in that: The circular plate (26) is provided with a chamfer that matches the arc-shaped protrusion (23); The outer end of the screw rod (14) is provided with a rotating handle (15); A positioning block (18) is provided on the outer side of the U-shaped block 1 (13) away from the U-shaped block 2 (3) through an auxiliary rod, and a positioning groove is provided on the positioning block (18). A positioning plate (20) that cooperates with the positioning groove is provided on the side of the round rod (21), and a triangular guide plate (19) is provided on the side of the positioning plate (20) facing the positioning groove.

5. The anti-deflection device for steel cage used for pile foundation pouring under complex conditions according to claim 4 is characterized in that: The upper end suspension rod movable ring (7) and the lower end suspension rod movable ring (8) both include a semi-circular arc rod 1 (30) arranged on the outer side of the vertical connecting rod (6), a semi-circular arc rod 2 (34) is slidably arranged inside the semi-circular arc rod 1 (30), and the semi-circular arc rod 2 (34) forms a complete circular ring structure with the semi-circular arc rod 1 (30) after sliding.

6. The anti-deflection device for steel cage used for pile foundation pouring under complex conditions according to claim 5 is characterized in that: The outer side of the semicircular arc rod (30) is provided with an arc groove (29) that passes through the interior, and the semicircular arc rod (34) is provided with a threaded rod (31) that matches the arc groove (29), and the upper side end of the threaded rod (31) is provided with a handle (2) after passing through the arc groove (29); The threaded rod (31) is provided with a matching limiting nut (32) on its periphery, and the corresponding end of the corresponding arc-shaped slot (29) is provided with a limiting slot (33) matching with the limiting nut (32).

7. The anti-deflection device for steel cage used for pile foundation pouring under complex conditions according to claim 6 is characterized in that: The specific construction method of the steel cage anti-deviation device comprises the following steps: S1. The two sets of anti-deflection devices are respectively connected to the steel cage hanging bars (9) on both sides of the steel cage through the upper end hanging bar movable ring (7) and the lower end hanging bar movable ring (8), and are fixed through the corresponding vertical limit buckles (4); S2. Drill the pile foundation hole on site, and then lower the steel cage into the pile foundation hole until it reaches the set elevation; S3, clamping the two sets of the anti-deviation devices at the two side ears of the casing (10) through the casing end clamping structure (5), and fixing them with the corresponding vertical limiting buckles (4), so that the steel cage hanging bar (9) is finally limited; S4, recheck the center deviation of the steel cage and install the steel grate (37) and the hopper (38); S5, pouring concrete into the pile foundation hole until the pouring is completed, and then removing the concrete hopper (38) and the steel grate (37); S6. Remove the vertical limit buckle (4), release the limit of the anti-deviation device on the reinforcement cage suspension bar (9), and then extract the anti-deviation device upward until it is completely removed.

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