Pile reinforcement cage fixing support

Abstract

The utility model belongs to the technical field of pile foundation construction, and mainly relates to a pile reinforcement cage fixing support which comprises a base, supporting frames and supporting legs in one-to-one correspondence with the supporting frames. The base is provided with a through hole for a reinforcement cage to pass through; at least three supporting frames are circumferentially and uniformly distributed around the through hole, each supporting frame is provided with a limiting hole for the corresponding supporting leg to pass through, the supporting legs are assembled with the supporting frames in a sliding mode in the axis direction of the limiting holes, and the ends of the supporting legs are used for being clamped to the lower sides of reinforcing ribs of the reinforcement cage; the base is further provided with driving mechanisms which are in one-to-one correspondence with the supporting legs and used for driving the supporting legs to move back and forth in the axis direction of the limiting holes. The supporting legs move towards the inner sides of the passing holes in the corresponding limiting holes through the driving mechanisms so as to clamp the reinforcement cage, automatic movement of the supporting legs can be achieved, manpower is saved, the construction efficiency is improved, and the construction risk can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile foundation construction, and mainly relates to a fixing bracket for pile steel reinforcement cages. Background Art

[0002] A steel reinforcement cage is a reticular structure formed by binding or welding a series of criss-crossing steel bars according to design requirements. It is usually used in concrete projects such as bridges, high-rise buildings, wharves, tunnels, basements, etc. As the main load-bearing member of the concrete structure, the steel reinforcement cage usually has a large aperture and a large weight, and the designed diameter is proportional to the axial length. The larger the aperture, the greater the weight. During the pile foundation construction process, the steel reinforcement cage needs to be prefabricated in sections, hoisted and connected on site.

[0003] During the hoisting and connecting process of the steel reinforcement cage, the common method is to use steel pipes to clamp the steel reinforcement cage in the hole on the casing as a temporary support every time a section is connected. For this method, the steel pipes need to be installed and disassembled once every time the steel reinforcement cage is lowered. When installing, the steel pipes need to be inserted from one radial end of the steel reinforcement cage and inserted out from the other radial end of the steel reinforcement cage, and both ends of the steel pipes are respectively clamped on the casing. When disassembling, the entire steel reinforcement cage needs to be lifted, and then the entire steel pipe is pulled out. The construction efficiency is relatively low, and the casing is prone to settlement and deformation. Most importantly, the load-bearing capacity is weak, and it is extremely easy to cause the accident of the steel reinforcement cage falling into the hole for a heavier steel reinforcement cage, resulting in casualties or property losses. Summary of the Utility Model

[0004] The utility model provides a fixing bracket for pile steel reinforcement cages to solve the technical problems of low construction efficiency and high safety risk in the prior art.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] A fixing bracket for pile steel reinforcement cages includes a base, a support frame and support legs corresponding to the support frame one by one; a through hole for the steel reinforcement cage to pass through is provided on the base; at least three support frames are evenly distributed in a circle around the through hole, and each support frame is provided with a limit hole for the support leg to pass through. The support leg is slidably assembled with the support frame along the axial direction of the limit hole, and the end of the support leg is used to be clamped under the stirrup of the steel reinforcement cage; a driving mechanism corresponding to the support leg one by one for driving the support leg to move back and forth in the axial direction of the limit hole is further provided on the base.

[0007] Beneficial Effects: When hoisting the first section of the steel reinforcement cage, the support leg is moved inward in the corresponding limit hole towards the inside of the through hole through the driving mechanism to clamp the steel reinforcement cage, and then the second section of the steel reinforcement cage is installed on the basis of the first section of the steel reinforcement cage. The automatic movement of the support leg can be realized, saving manpower and improving construction efficiency. The fixing bracket for pile steel reinforcement cages is arranged outside the casing, which can not only reduce the number of installations and disassembly, but also improve the load-bearing capacity, reduce construction risks, and can meet the use requirements of various pile diameters.

[0008] Further, support columns are provided at positions corresponding to each support frame on the base. The driving mechanism includes a hydraulic cylinder, a connecting rod, and a limiting rod. A hanging plate is vertically connected to the top of each support column, and the fixed end of the hydraulic cylinder is hinged to the hanging plate; one end of the connecting rod is hinged to the support frame, and the other end is hinged to the piston rod of the hydraulic cylinder; one end of the limiting rod is hinged to the support leg, and the other end is hinged to the piston rod.

[0009] Beneficial effects: The hydraulic system has good shock absorption and buffering capabilities, which can reduce mechanical vibration and impact, protect the machine, and extend its service life. The entire driving mechanism can precisely control the movement trajectory and position. Combined with the hydraulic system, it can provide strong force while maintaining high movement accuracy. At the same time, the driving mechanism is an automated mechanism, saving manpower and improving construction efficiency.

[0010] Further, two connecting rods are provided and symmetrically arranged on both sides of the support frame. One end of the two connecting rods shares a hinge shaft with the limiting rod; the other end of the two connecting rods shares a hinge shaft with the support frame.

[0011] Beneficial effects: Two connecting rods are provided and symmetrically arranged on both sides of the support frame to improve the stability of the driving mechanism during driving.

[0012] Further, the base is a split structure, including a left seat body and a right seat body that can be detachably spliced. The left seat body and the right seat body are both provided with two support frames, and the left seat body and the right seat body are provided with opposite semi-circular surfaces to form the through hole after the left seat body and the right seat body are spliced.

[0013] Beneficial effects: The base is a split structure, including a left seat body and a right seat body that can be detachably spliced, which is convenient for hoisting and transportation.

[0014] Further, fixing plates are provided on the front and back sides of the splicing part of the left seat body and the right seat body. Bolt holes are provided on the fixing plates. By inserting locking bolts into the bolt holes on two corresponding fixing plates and cooperating with the locking nuts and the locking bolts, the left seat body and the right seat body can be connected into a whole.

[0015] Beneficial effects: The left seat body and the right seat body are connected by locking nuts and locking bolts, with a simple structure and convenient operation.

[0016] Further, a plurality of reinforcing plates are provided on the peripheries of the left seat body and the right seat body.

[0017] Beneficial effects: The reinforcing plates are beneficial to improving the bearing capacity of the pile steel cage fixing bracket, enabling the pile steel cage fixing bracket to bear larger or more sections of steel cages.

[0018] Furthermore, a guiding inclined surface is provided on the supporting leg, and the guiding inclined surface gradually slopes upward from the outside of the through hole to the inside of the through hole in the axial direction of the limiting hole.

[0019] Beneficial effects: The guiding inclined surface gradually slopes upward from the outside of the through hole to the inside of the through hole in the axial direction of the limiting hole, that is, the end of the supporting leg located inside the through hole is at a lower height. When the distance between the spiral bars and the reinforcing bars on the steel cage is short, it is more conducive for the insertion end of the supporting leg to be inserted between the spiral bars and the reinforcing bars to clamp the steel cage.

[0020] Furthermore, a hanging hole is provided on the support frame.

[0021] Beneficial effects: When it is necessary to move the pile steel cage fixing bracket, the pile steel cage fixing bracket can be lifted by using the hanging hole on the support frame, and the operation is convenient. Since the support frames are distributed in a square around the through hole, the hanging holes on the support frames are also distributed in a square around the through hole. In this way, the pile steel cage fixing bracket is more stable when being hoisted.

[0022] Furthermore, the base is a square base, there are four support frames, the four support frames are respectively arranged on two diagonals of the base, and the four support columns are also respectively arranged on two diagonals of the base and are located outside the support frames.

[0023] Beneficial effects: There are four support frames, which strengthen the bearing capacity of the pile steel cage fixing bracket to support the steel cage. The base is a square base, and the four support frames are respectively arranged on two diagonals of the base. Therefore, the four support legs are also respectively arranged on two diagonals of the base, so that the steel cage supported by the four support legs is more stable. Description of the Drawings

[0024] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understood. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0025] Figure 1 is a structural schematic diagram of the present utility model;

[0026] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0027] Figure 3 is an assembly schematic diagram between the piston rod, the connecting rod, the limiting rod, and the supporting leg;

[0028] Figure 4 is an assembly schematic diagram between the hydraulic cylinder and the hanging plate;

[0029] Figure 5 It is an assembly schematic diagram between the support frame and the connecting rod.

[0030] Description of the reference numerals in the drawings:

[0031] 1. Left seat body; 2. Right seat body; 3. Through hole; 4. Reinforcing plate; 5. Support column; 6. Hanging plate; 7. Fixed plate; 8. Bolt hole; 9. Support leg; 10. Support frame; 11. Hanging hole; 12. Connecting rod; 13. Limiting rod; 14. Piston rod; 15. Hydraulic cylinder; 16. First hinge shaft; 17. Insertion end; 18. Second hinge shaft; 19. First U-shaped seat; 20. Second U-shaped seat; 21. Fourth connecting plate; 22. First connecting plate; 23. Third connecting plate; 24. Second connecting plate. Specific implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0033] Next, various non-limiting implementation manners of the present invention will be specifically introduced. The number of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0034] Embodiment 1 of a pile steel cage fixing bracket provided by the present invention:

[0035] As Figure 1 and Figure 2 shown, the pile steel cage fixing bracket includes a base, a plurality of support frames 10 arranged on the base and evenly distributed in a circumferential manner, and support legs 9 movably assembled on the corresponding support frames 10.

[0036] The base is of a square structure and the base includes a left seat body 1 and a right seat body 2. The left seat body 1 and the right seat body 2 are spliced together, and fixing plates 7 are provided on the front and rear sides of the splicing part of the left seat body 1 and the right seat body 2. Bolt holes 8 are provided on the fixing plates 7. By inserting locking bolts into the bolt holes 8 on two corresponding fixing plates 7 and cooperating with the locking bolts by locking nuts, the left seat body 1 and the right seat body 2 can be connected into a whole. A semi-circular arc surface is provided on the inner side of each of the left seat body 1 and the right seat body 2. When the left seat body 1 and the right seat body 2 are spliced, the two semi-circular arc surfaces are also spliced together to form a through hole 3 for the reinforcement cage to pass through coaxially. The structures of the left seat body 1 and the right seat body 2 are simple and convenient to install. And by removing the locking bolts and locking nuts, the left seat body 1 and the right seat body 2 can be separated, which is convenient for hoisting and transportation.

[0037] As Figure 1 shown, on the left end face of the left seat body 1, four reinforcing plates 4 are arranged at equal intervals, and two reinforcing plates 4 are respectively provided on the front and rear end faces of the left seat body 1. Similarly, on the right end face of the right seat body 2, four reinforcing plates 4 are arranged at equal intervals, and two reinforcing plates 4 are respectively provided on the front and rear end faces of the right seat body 2. The reinforcing plates 4 on the left seat body 1 and the right seat body 2 directly improve the load-bearing capacity of the pile reinforcement cage fixing bracket.

[0038] As Figure 1 shown, in this embodiment, there are four support frames 10, and two are respectively provided on the left seat body 1 and the right seat body 2. The four support frames 10 are distributed on the base in a square centered on the above-mentioned through hole 3. Among the four support frames 10, the connection line between a pair of diagonally arranged support frames 10 and the connection line between the other pair of diagonally arranged support frames 10 and the axis of the through hole 3 intersect at one point, ensuring the accurate center position of the reinforcement cage. A limit hole for the support leg 9 to pass through is provided in the support frame 10, and the axis of the limit hole is parallel to the connection line between the two diagonally arranged support frames 10. The support leg 9 passes through the limit hole and can slide and adjust in the limit hole.

[0039] As Figure 2 and Figure 5 shown, a corresponding lifting hole 11 is provided on each support frame 10. When it is necessary to move the pile reinforcement cage fixing bracket, the pile reinforcement cage fixing bracket can be lifted by using the lifting hole 11 of the support frame 10. Since the support frames 10 are distributed in a square around the above-mentioned through hole 3, the lifting holes 11 on the support frames 10 are also distributed in a square around the through hole 3. In this way, the pile reinforcement cage fixing bracket is more stable when being hoisted.

[0040] As Figure 1 and Figure 2As shown, the support leg 9 has a guiding inclined surface, which gradually slopes upward from the outside to the inside of the through hole 3 in the axial direction of the limiting hole. Therefore, the insertion end 17 of the support leg 9 located inside the through hole 3 has a lower height. When the distance between the spiral bars and the reinforcing bars on the steel cage is short, it is more conducive to the insertion end 17 of the support leg 9 being inserted between the spiral bars and the reinforcing bars to clamp the steel cage. The outer end of the support leg 9 located in the through hole 3 is connected with a first connecting plate 22.

[0041] As Figure 1 , Figure 2 and Figure 4 shown, four support columns 5 corresponding to the support frames 10 one by one are provided on the base. The four support columns 5 are respectively located on the diagonals of the base and are located outside the support frames 10 relative to the through hole 3. A horizontally placed hanging plate 6 is vertically connected to the upper end of each support column 5. A first U-shaped seat 19 is connected to the lower end of the hanging plate 6, and a first groove is provided inside the first U-shaped seat 19.

[0042] As Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, each support leg 9 is connected with a corresponding driving mechanism. The driving mechanism includes a hydraulic cylinder 15, a limiting rod 13 and two connecting rods 12. The two connecting rods 12 are symmetrically arranged on both sides of the support frame 10. The fixed end of the hydraulic cylinder 15 is connected with a second connecting plate 24. The hydraulic cylinder 15 and the hanging plate 6 are hinged by inserting the second connecting plate 24 into the first groove on the first U-shaped seat 19. The lower end of the piston rod 14 of the hydraulic cylinder 15 is connected with a third connecting plate 23. Both ends of each connecting rod 12 are respectively connected with a fourth connecting plate 21. Both ends of the limiting rod 13 are connected with a second U-shaped seat 20, and a second groove is provided on the second U-shaped seat 20. One end of the limiting rod 13 and the piston rod 14 are hinged by inserting the third connecting plate 23 into the second groove on the second U-shaped seat 20 at the other end of the limiting rod 13. The other end of the limiting rod 13 and the support leg 9 are hinged by inserting the first connecting plate 22 into the second groove on the second U-shaped seat 20 at the other end of the limiting rod 13. One end of the connecting rod 12 and the piston rod 14 are hinged by a first hinge shaft 16. The other end of the connecting rod 12 is hinged by inserting a second hinge shaft 18 into the fourth connecting plate 21 at the other end of the connecting rod 12 and the corresponding fastening hole. One of the two ends of the two connecting rods 12 shares a hinge shaft with the limiting rod 13; the other ends of the two connecting rods 12 share a hinge shaft with the support frame 10. The whole realizes the automatic telescopic movement of the piston rod 14 on the hydraulic cylinder 15 by controlling the hydraulic cylinder 15, so that the support leg 9 automatically moves along the diagonal direction of the base on the support frame 10.

[0043] The working process of the present utility model is as follows:

[0044] Before construction, the base needs to be assembled as required. Tighten the locking bolts and locking nuts to assemble the left seat body 1 and the right seat body 2 into a square-structured base. After the casing is buried, the nearby soil needs to be tamped and leveled. Hoist and arrange the pile reinforcement cage fixing bracket as a whole according to the pile position. Lower the first section of the reinforcement cage through the through hole 3 on the base. Make the insertion end 17 of the support leg 9 catch under the stirrup of the reinforcement cage through the driving mechanism. Then install the second section of the reinforcement cage on the first section of the reinforcement cage. Hoist the whole two sections of the reinforcement cage. The driving mechanism drives the support leg 9 to slide outwards, lower the reinforcement cage, and make the support leg 9 catch the stirrup at the top of the second section of the reinforcement cage through the driving mechanism. After the concrete is poured, the pile reinforcement cage fixing bracket can be removed. If there are more sections of the reinforcement cage, the above steps can be repeated until the last section of the reinforcement cage is installed in place.

[0045] The support leg 9 can be moved automatically by moving the support leg 9 in the corresponding limit hole towards the inner side of the through hole 3 through the driving mechanism, which can save manpower and improve construction efficiency. The pile reinforcement cage fixing bracket is arranged outside the casing, which can not only reduce the number of installation and disassembly times, but also improve the load-bearing capacity, reduce construction risks, and meet the use requirements of various pile diameters.

[0046] Embodiment 2 of a pile reinforcement cage fixing bracket provided by the present invention:

[0047] The main difference between it and Embodiment 1 is that in Embodiment 1, the driving mechanism includes a hydraulic cylinder, a limit rod and two connecting rods, and the support leg is indirectly driven by the hydraulic cylinder to move. In this embodiment, a linear electric actuator is directly adopted, or the piston rod of the hydraulic cylinder is directly connected to the support leg.

[0048] Embodiment 3 of a pile reinforcement cage fixing bracket provided by the present invention:

[0049] The main difference between it and Embodiment 1 is that in Embodiment 1, the left seat body and the right seat body are connected by inserting the locking bolts into the bolt holes on the corresponding fixing plates of the two seat bodies, and the left seat body and the right seat body are connected as a whole by the cooperation of the locking nuts and the locking bolts. In this embodiment, the left seat body and the right seat body can be spliced together by means of plugging, with a slot provided on one of them and a plug provided on the other, such as a mortise and tenon structure.

Claims

1. A pile reinforcement cage fixing bracket, characterized in that: It includes a base, a support frame and support legs corresponding to the support frame one by one; The base is provided with a through hole for the steel cage to pass through; The support frames are evenly distributed around the through hole in a circle with at least three support frames, each support frame is provided with a limiting hole for the support leg to pass through, the support leg is slidably assembled with the support frame along the axial direction of the limiting hole, and the end of the support leg is used to be clamped on the lower side of the reinforcing rib of the steel cage; The base is also provided with a driving mechanism corresponding to the supporting legs one by one and used for driving the supporting legs to move back and forth in the axial direction of the limiting hole.

2. A pile reinforcement cage fixing bracket according to claim 1, characterized in that: A support column is provided on the base corresponding to the position of each support frame. The driving mechanism includes a hydraulic cylinder, a connecting rod and a limit rod. The top of each support column is vertically connected to a hanging plate. The fixed end of the hydraulic cylinder is hinged to the hanging plate; one end of the connecting rod is hinged to the support frame, and the other end is hinged to the piston rod of the hydraulic cylinder; one end of the limit rod is hinged to the support leg, and the other end is hinged to the piston rod.

3. A pile reinforcement cage fixing bracket according to claim 2, characterized in that: The connecting rods are provided with two and are symmetrically arranged on both sides of the support frame, one end of the two connecting rods and the limit rod share a hinge axis; the other end of the two connecting rods and the support frame share a hinge axis.

4. A pile reinforcement cage fixing bracket according to any one of claims 1 to 3, characterized in that: The base is a split structure, including a detachable left seat body and a right seat body, each of which is provided with two support frames, and the left seat body and the right seat body are provided with relatively arranged semicircular arc surfaces to form the through hole after the left seat body and the right seat body are spliced.

5. A pile reinforcement cage fixing bracket according to claim 4, characterized in that: The left and right seat bodies are provided with fixing plates on both the front and rear sides of the splicing parts, and the fixing plates are provided with bolt holes. The left and right seat bodies can be connected as a whole by inserting locking bolts into the bolt holes on the two corresponding fixing plates and cooperating with locking nuts and locking bolts.

6. A pile reinforcement cage fixing bracket according to claim 4, characterized in that: A plurality of reinforcing plates are arranged on the peripheries of the left seat body and the right seat body.

7. A pile reinforcement cage fixing bracket according to any one of claims 1 to 3, characterized in that: The support leg is provided with a guiding inclined surface, and the guiding inclined surface gradually inclines upward from the outer side of the through hole to the inner side of the through hole in the axial direction of the limiting hole.

8. A pile reinforcement cage fixing bracket according to any one of claims 1 to 3, characterized in that: The supporting frame is provided with a hanging hole.

9. A pile reinforcement cage fixing bracket according to any one of claims 1 to 3, characterized in that: The base is a square base, and four support frames are provided. The four support frames are respectively arranged on two diagonals of the base, and four support columns are also respectively arranged on two diagonals of the base and located on the outside of the support frames.

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