Rebar cage installation device and method of use

Abstract

The present application relates to the technical field of building construction, and provides a steel cage installation device and a method for using the same. The installation device includes: a boom, a hook provided at the lower end of which; a traction rotating member, which rotates with the boom and is provided with an upper guide groove and a lower guide groove; an operating member, which is provided on one side of the boom, and which slides with the upper guide groove to drive the traction rotating member to rotate; and a deflecting member, which rotates with the boom, and which also slides with the lower guide groove to deflect under the traction of the rotating traction rotating member. The beneficial effects of the present invention are: the installation device can be disassembled and recycled, is easy to disassemble, saves costs, and improves the horizontal centering positioning accuracy of the steel cage. The operation process is simplified, and the installation efficiency of the steel cage is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and particularly relates to a reinforcement cage installation device and a use method thereof. Background Art

[0002] With the rapid development of the national economy, bored piles, both mechanically bored and manually excavated, have become a mature and efficient construction technique, widely used in the main and auxiliary structures of construction projects. The positioning and installation of the reinforcement cage is one of the factors affecting the quality of bored pile construction. Cage positioning involves both elevation and horizontal centering.

[0003] The elevation positioning of the steel cage refers to the positioning of the depth of the steel cage placed under the pile foundation hole, so that the elevation of the top of the bored pile is lower than the elevation of the hole of the pile foundation hole. The traditional positioning method is to control the elevation of the steel cage by the length of the hanger bar, but the hanger bar needs to be cut and welded on site, the process is cumbersome, and it cannot be reused, which is not conducive to cost control. The horizontal centering positioning of the steel cage refers to the overlapping positioning of the central axis of the steel cage and the central axis of the pile foundation hole or the eccentric positioning within the specified range. The traditional positioning method is to symmetrically set pads around each reinforcing hoop of the steel cage, and position it by contacting the pads with the hole wall of the pile foundation hole. However, the operating environment in the pile foundation hole is poor, the construction efficiency is low, and the pads are not convenient for improving the horizontal centering accuracy of the steel cage. In addition, the elevation positioning and horizontal centering positioning of the existing steel cage are respectively achieved by different devices, so each device needs to be installed separately, affecting the construction efficiency of the bored pile. Summary of the Invention

[0004] In response to the above-mentioned problems in the prior art, the present application proposes a steel cage installation device and a method for using the same.

[0005] In the first aspect, the present invention proposes a steel cage installation device, comprising: a hanger, a hook is provided at the lower end of which is used to hang the steel cage; a traction rotating member, which is rotatably matched with the hanger, and the traction rotating member is provided with an upper guide groove and a lower guide groove; an operating member, which is arranged on one side of the hanger, and the operating member is slidably matched with the upper guide groove to drive the traction rotating member to rotate; and a deflection member, which is rotatably matched with the hanger, and the deflection member is also slidably matched with the lower guide groove to be used for deflecting under the traction action of the rotating traction rotating member.

[0006] Furthermore, the installation device also includes: a lifting member, which is provided with a first guide hole and a second guide hole, the lifting rod passes through the first guide hole, and the operating member passes through the second guide hole; a first adjusting device, which cooperates with the lifting rod and is used to adjust the fitting depth between the lifting rod and the first guide hole; and a second adjusting device, which cooperates with the operating member and is used to adjust the fitting depth between the operating member and the second guide hole.

[0007] The beneficial effects of the above further scheme are: by arranging a first guide hole on the lifting member for facilitating the passage of the lifting rod and a second guide hole for facilitating the passage of the operating member, it is convenient to lift the installation device as a whole into the pile foundation hole, thereby improving construction efficiency; through the action of the first adjustment device and the second adjustment device, it is convenient to adjust the height of the lifting rod and the operating member respectively, so that the elevation positioning and horizontal centering positioning of the steel cage do not interfere with each other.

[0008] Further, the first adjusting device includes a first adjusting nut and a first threaded segment, the first threaded segment is arranged on the suspension rod, the first adjusting nut is arranged above the first guide hole, and is sleeved on the suspension rod to cooperate with the first threaded segment; the second adjusting device includes a second adjusting nut and a second threaded segment, the second threaded segment is arranged on the operating member, the second adjusting nut is arranged above the second guide hole, and is sleeved on the operating member to cooperate with the second threaded segment.

[0009] The beneficial effect of the above further solution is that the height adjustment accuracy of the suspension rod and the operating member is improved through the cooperation between the nut and the threaded section, thereby improving the elevation positioning accuracy and horizontal centering positioning accuracy of the steel cage.

[0010] Furthermore, the installation device also includes a self-locking device, which is arranged on the lifting member and is used to lock and fix the lifting rod and the operating member to the lifting member.

[0011] The beneficial effect of the above further scheme is that the self-locking device locks and fixes the hanger and the operating member, which can ensure that the hanger and the operating member are maintained at a specific height, so that the steel cage remains fixed after positioning is completed, especially during the process of pouring pile foundation concrete, the steel cage will not deviate in height and horizontal directions, thereby improving the construction quality of the bored piles.

[0012] Furthermore, a first pin hole is provided on the boom; the traction rotating member includes: a pull rod, the pull rod includes an upper guide rod and a lower guide rod, the upper guide rod is provided with the upper guide groove, the lower guide rod is provided with the lower guide groove, and the pull rod is also provided with a traction steering pin hole; a traction rotating pin, which passes through the traction steering pin hole and the first pin hole to realize the rotational cooperation between the pull rod and the boom; an upper sliding pin, which is slidably cooperated with the upper guide groove and is connected to the operating member; and a lower sliding pin, which is slidably cooperated with the lower guide groove and is connected to the deflection member.

[0013] Furthermore, a second pin hole is provided on the boom; the deflection member includes: a deflection plate, including a positioning arm and a rotating arm connected thereto, a deflection pin hole and a sliding pin hole being provided on the rotating arm; the lower sliding pin passes through the sliding pin hole; and a deflection rotating pin passes through the deflection pin hole and the second pin hole to realize the rotational coordination between the deflection plate and the boom.

[0014] Furthermore, an arc-shaped deflection guide groove is provided on the boom, the center of the deflection guide groove coincides with the center of the second pin hole, and the lower sliding pin also slides with the deflection guide groove; the pull rod and the deflection plate are respectively arranged on two opposite sides of the boom.

[0015] The beneficial effect of the above-mentioned further scheme is: by arranging a deflection guide groove on the hanger, the deflection guide groove can further limit the deflection direction and trajectory of the deflection plate, ensure the horizontal centering positioning accuracy, and provide effective support for the lower sliding pin. The pull rod and the deflection plate rotate and cooperate with each other on the two opposite sides of the hanger, the force is evenly distributed, the connection quality of the pull rod and the deflection plate is good, and it is not easy to fall off.

[0016] Furthermore, the suspension rod is provided with a third guide hole above and / or below the opening of the hook, and the operating member is also slidably engaged with the third guide hole to open or close the opening of the hook.

[0017] The beneficial effect of the above further scheme is: by setting a third guide hole on the hanger for sliding cooperation with the operating part, and cooperating with the second guide hole, effective lateral support can be provided for the operating part to ensure its vertical sliding stability. In addition, the lateral bending resistance of the operating part can be improved, so that when closing the opening of the hook, it has sufficient strength and cooperates with the hook to form an effective closed loop, so as to better limit the displacement of the steel cage and further avoid the floating of the steel cage.

[0018] Furthermore, the suspension rod and the operating member are both rods or pipes with adjustable lengths.

[0019] The beneficial effect of the above further solution is that by setting the hanger and the operating member as a rod or pipe with adjustable length, the installation device can be applied to the installation of pile foundation holes of different depths and steel cages of different design elevations, and has a wider range of applications.

[0020] In a second aspect, the present invention further provides a method for using the steel cage installation device, comprising the following steps:

[0021] Lowering a plurality of the installation devices into a pile foundation hole provided with a steel cage, and evenly distributing the plurality of installation devices along the circumference of the steel cage, so that the hook of the suspension rod of each installation device hooks the steel cage;

[0022] According to the design elevation of the steel cage, the height of each of the hangers is adjusted so that the actual elevation of the steel cage is within the error range of the design elevation, thereby completing the elevation positioning of the steel cage;

[0023] Push and pull the operating member of each of the installation devices so that the deflection members of each of the installation devices are deflected to an initial state, set the height of the operating member at this time as the initial height, and record the initial height value; wherein, the deflection member of each of the installation devices in the initial state is the same as the maximum horizontal distance of its suspension rod, and the maximum horizontal distance is less than the minimum horizontal distance between the suspension rod and the hole wall of the pile foundation hole; push down each of the operating members so that each of the deflection members is deflected to abut against the hole wall of the pile foundation hole, and fine-tune the height of each of the operating members so that the difference between the height of each of the operating members and the initial height value is equal, thereby completing the horizontal centering positioning of the steel cage;

[0024] Fix the steel cage and pour the pile foundation concrete;

[0025] After the conditions for dismantling the installation device are met, the operating member is pulled up to rotate the deflection member in the opposite direction to push out the hook on the steel cage, thereby separating the hook from the steel cage, and taking the installation device out of the pile foundation hole to complete the dismantling of the installation device.

[0026] The beneficial effects of the present invention are as follows: by arranging a hook on the hanger, the steel cage is suspended by the hanger to perform elevation positioning of the steel cage. Compared with the existing welding fixing method, the operation is simple and convenient for assembly and disassembly. The operating part drives the traction rotating part to rotate, which in turn drives the deflection part to deflect, and the deflection part is used to abut the hole wall of the pile foundation hole to achieve horizontal centering positioning of the steel cage. Since the operating part can control the deflection amplitude of the deflection part, the horizontal centering positioning accuracy of the steel cage is effectively improved. The installation device can be disassembled and recycled, saving costs. The installation device can be lowered into the pile foundation hole as a whole, and there is no need to install it separately. The connection and separation of the device and the steel cage, as well as the elevation positioning and horizontal centering positioning operations of the steel cage do not require entering the pile foundation hole, which simplifies the operation process and improves the installation efficiency of the steel cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the main structure of the steel cage installation device of the present invention.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure of the middle boom.

[0029] Figure 3 for Figure 1 Schematic diagram of the structure of the operating parts.

[0030] Figure 4 for Figure 1Schematic diagram of the structure of the lifting parts.

[0031] Figure 5 for Figure 1 Schematic diagram of the structure of the middle tie rod.

[0032] Figure 6 for Figure 1 Schematic diagram of the structure of the middle deflector plate.

[0033] Figure 7 This is a structural schematic diagram of the steel cage installation device of the present invention in one usage state.

[0034] Figure 8 This is a structural schematic diagram of another usage state of the steel cage installation device of the present invention.

[0035] Figure 9 This is a structural schematic diagram of another usage state of the steel cage installation device of the present invention.

[0036] In the figure,

[0037] 10- suspension rod; 11- hook; 12- flat plate structure; 13- first pin hole; 14- second pin hole; 15- deflection guide groove; 16- third guide hole; 17- first threaded connector;

[0038] 20 - traction rotating member; 21 - pull rod; 211 - upper guide rod; 212 - lower guide rod; 213 - upper guide groove; 214 - lower guide groove; 215 - traction steering pin hole; 22 - traction rotating pin; 23 - upper sliding pin; 24 - lower sliding pin;

[0039] 30-operating member; 31-fourth threaded connector; 32-third pin hole;

[0040] 40-deflection member; 41-deflection plate; 411-positioning arm; 412-rotation arm; 42-deflection rotation pin; 43-deflection pin hole; 44-sliding pin hole;

[0041] 50 - lifting piece; 51 - first guide hole; 52 - second guide hole; 53 - lifting hole;

[0042] 60-first adjusting device; 61-first adjusting nut; 62-first threaded section;

[0043] 70 - second adjusting device; 71 - second adjusting nut; 72 - second threaded section;

[0044] 80-self-locking device; 81-first locking bolt; 82-second locking bolt;

[0045] 90-reinforcement of steel cage;

[0046] 100-Pole beam. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1 To the attached Figure 9 The present invention is further described in detail with reference to specific examples.

[0048] Because the top elevation of cast-in-place piles is often lower than the opening elevation of the pile foundation hole, steel hangers are required to suspend the cage at the designed height. For high-rise buildings with multi-story basements, the excavation depth and pile foundation holes are very deep, necessitating longer hangers, or even multiple hangers reinforced to form a cage sub-cage. Traditionally, the hangers for pile foundation cages must be individually calculated, cut, and welded. The final section of the cage is then welded to the main pile foundation reinforcement on-site. This cumbersome process results in poor installation and low precision. Most hangers are discarded after use and cannot be reused. In rare cases, some hangers can be recovered when the pile head is broken, but this method is inconvenient and does not allow for efficient and convenient recycling. Increased construction costs, resource waste, and environmental pollution are particularly pronounced when the number of pile foundations (or diaphragm walls) is large and the pile foundation holes are deep.

[0049] Furthermore, the horizontal centering point of the pile foundation reinforcement cage can only be determined by its own positioning bars, casing, or other devices and methods; it cannot be adjusted by using hanger bars. Furthermore, during the pouring process, concrete can easily backwash the pile foundation reinforcement cage, causing it to float. However, the hanger bars are too weak to prevent the pile foundation reinforcement cage from floating, so other methods are usually required to control the floating cage.

[0050] It can be seen that how to improve the recycling rate of hanger bars, increase the use functions of hanger bars, accurately adjust the installation position of pile foundation steel cage (including horizontal centering and elevation), and prevent the pile foundation (or underground continuous wall) steel cage from floating directly affects the construction speed, quality and cost of cast-in-place piles (or underground continuous walls), and is also a difficult problem that practitioners urgently need to solve.

[0051] In order to solve the above problems, the present invention proposes Figure 1 The steel cage installation device shown includes: a suspension rod 10, a traction rotating member 20, an operating member 30, a deflecting member 40, a lifting member 50, a first adjusting device 60, a second adjusting device 70, and a self-locking device 80.

[0052] The lower end of the suspension rod 10 is provided with a hook 11 for hanging the reinforcement cage. In actual use, the hook 11 is hooked on the reinforcing bar at the upper end level of the reinforcement cage.

[0053] Combined with attachment Figure 2As shown, an upright flat plate structure 12 is provided at the lower end of the boom 10, with the plate surface of the flat plate structure 12 being parallel to the length direction of the boom 10. The flat plate structure 12 is provided with a hook 11, and is also provided with a first pin hole 13, a second pin hole 14, and an arc-shaped deflection guide groove 15. The center of the deflection guide groove 15 coincides with the center of the second pin hole 14, and the opening direction of the hook 11 is located on the side of the deflection guide groove 15 that is away from the center of the deflection guide groove 15.

[0054] In addition, the first pin hole 13 can be set on the central axis of the hanger 10, and the inner lowest end of the hook 11 is located on the central axis of the hanger 10. The length of the hanger 10 is known, and the length from the upper end of the hanger 10 to the inner lowest end of the hook 11 is also known. When the hanger 10 is lowered into the pile foundation hole, the depth of the hook 11 can be calculated by measuring the height difference between the upper end of the hanger 10 and the upper end of the pile foundation hole, thereby determining the height of the reinforcement of the steel cage on the hook 11.

[0055] The flat plate structure 12 at the lower end of the boom 10 is provided with a third guide hole 16 above and / or below the opening of the hook 11. The operating member 30 also slides with the third guide hole 16 to open or close the opening of the hook 11. In one embodiment, the operating member 30 is preferably a rod or a pipe, which is parallel to the boom 10. The operating member 30 can close the opening of the hook 11 by sliding downward, and can open the closed opening of the hook 11 by sliding upward. In order to make the operating member 30 have a better sealing effect on the opening of the hook 11, the third guide hole 16 is provided above and below the opening of the hook 11. The upper and lower ends of the opening of the hook 11 are respectively provided with transverse protrusions, and the transverse protrusions are provided with a vertically coaxial third guide hole 16. The aperture of the third guide hole 16 is greater than or equal to the outer diameter of the operating member 30. The third guide hole 16 not only guides the operating member 30 to slide vertically, but also provides lateral support for the operating member 30, so that the closed loop structure formed by the operating member 30 and the hook 11 is stronger, and the steel cage reinforcement 90 in the closed loop structure cannot be separated.

[0056] In addition, the boom 10 can be a rod or pipe with adjustable length. Figure 3 As shown, the operating member 30 is also a rod or a tube with adjustable length. There are many specific ways to adjust the length.

[0057] The boom 10 further includes a first rod and a second rod. Figure 1 、 Figure 2 The figure shows the first rod of the boom 10 , wherein the upper end of the first rod is provided with a first threaded connector 17 , and the lower end of the first rod is provided with a hook 11 .

[0058] There is at least one second rod, with a second threaded connector and a third threaded connector respectively provided at each end. The second threaded connector is threadedly connected to the first threaded connector 17, thereby connecting the first and second rods to extend the boom 10. The third threaded connector is used to connect to the second threaded connector of another second rod, thereby successively extending the boom 10. This allows the boom 10 to be adapted for pile foundation holes of varying depths.

[0059] The same structure can be applied to the operating member 30. For example, the operating member 30 includes a third rod and a fourth rod. Figure 3 The third rod of the operating member 30 is shown. A fourth threaded connector 31 is provided at the upper end of the third rod, and a third pin hole 32 is provided at the lower end of the third rod. There is at least one fourth rod, which is threadedly connected to the third rod to extend the operating member 30. The fourth rod can also be connected to another fourth rod to further extend the length of the operating member 30.

[0060] Combined with attachment Figure 4 As shown, the lifting member 50 is vertically provided with a first guide hole 51 and a second guide hole 52. The suspension rod 10 passes through the first guide hole 51, and the operating member 30 passes through the second guide hole 52. The suspension rod 10 can slide along the first guide hole 51, thereby adjusting the height of the suspension rod 10 relative to the lifting member 50. Similarly, the operating member 30 can slide along the second guide hole 52, thereby adjusting the height of the operating member 30 relative to the lifting member 50. This allows the height of the rebar cage to be adjusted.

[0061] The lifting member 50 is further provided with a lifting hole 53 so that the shoulder pole beam 100 can pass through the lifting hole 53 to fix the lifting member 50 .

[0062] Combined with attachment Figure 2As shown, the first adjustment device 60 cooperates with the boom 10 and is used to adjust the depth of engagement between the boom 10 and the first guide hole 51. The first adjustment device 60 includes a first adjustment nut 61 and a first threaded segment 62. The first threaded segment 62 is disposed on the boom 10. The first adjustment nut 61 is disposed above the first guide hole 51 and is fitted onto the boom 10 to engage with the first threaded segment 62. The outer diameter of the first adjustment nut 61 is larger than the diameter of the first guide hole 51. As a result, the boom 10 cannot be lowered further due to the limiting effect of the first adjustment nut 61. When it is necessary to raise the boom 10 relative to the lifting member 50, directly pull the boom 10 upwards to make the first adjusting nut 61 rise with the boom 10, then keep the boom 10 stationary and rotate the first adjusting nut 61. Under the cooperation of the first adjusting nut 61 and the first threaded section 62, the first adjusting nut 61 descends relative to the boom 10 until it descends to abut against the upper end of the lifting member 50. At this time, even if the boom 10 is loosened, the boom 10 will not descend, and the height to which the first adjusting nut 61 descends relative to the boom 10 is the rising height of the boom 10. Therefore, by controlling the displacement distance of the first adjusting nut 61 relative to the boom 10, the lifting height of the boom 10 can be accurately adjusted, thereby achieving accurate control of the elevation of the steel cage.

[0063] Likewise, in conjunction with Figure 3 As shown, the second adjustment device 70 cooperates with the operating member 30 and is used to adjust the engagement depth between the operating member 30 and the second guide hole 52. The second adjustment device 70 includes a second adjustment nut 71 and a second threaded segment 72. The second threaded segment 72 is provided on the operating member 30. The second adjustment nut 71 is provided above the second guide hole 52 and is sleeved on the operating member 30 to cooperate with the second threaded segment 72.

[0064] The mechanism by which the second adjustment device 70 adjusts the height of the operating member 30 is identical to the mechanism by which the first adjustment device 60 adjusts the height of the boom 10, and will not be further elaborated here. Thus, the displacement of the second adjustment nut 71 relative to the operating member 30 allows precise adjustment of the height of the operating member 30. This precise adjustment of the height of the operating member 30 allows precise control of the deflection amplitude of the deflection member 40, thereby precisely controlling the horizontal centering of the reinforcement cage.

[0065] Combine Figure 4 As shown, in order to prevent the steel cage from floating up, and to better fix the boom 10 and the operating member 30, and limit the sliding of the boom 10 and the operating member 30 relative to the lifting member 50, a self-locking device 80 is provided on the lifting member 50 for locking and fixing the boom 10 and the operating member 30 to the lifting member 50.

[0066] Specifically, the self-locking device 80 includes a first locking bolt 81 and a second locking bolt 82. The first locking bolt 81 is disposed on one side of the first guide hole 51 and communicates with the first guide hole 51. When tightened, the first locking bolt 81 abuts against the sidewall of the boom 10 within the first guide hole 51, thereby locking the boom 10 within the first guide hole 51. To achieve a better locking effect, multiple first locking bolts 81 are provided, spaced apart along the length of the first guide hole 51.

[0067] Similarly, a second locking bolt 82 is disposed on one side of the second guide hole 52 and communicates with the second guide hole 52. Tightening the second locking bolt 82 causes its tip to abut against the outer wall of the operating member 30 within the second guide hole 52, thereby locking the operating member 30 within the second guide hole 52. To achieve a better locking effect, multiple second locking bolts 82 are provided, spaced apart along the length of the second guide hole 52. The axes of the first locking bolt 81 and the second locking bolts 82 intersect horizontally and perpendicularly.

[0068] Combined with attachment Figure 1 , Attachment Figure 5 As shown, the traction rotating member 20 includes a pull rod 21 , a traction rotating pin 22 , an upper sliding pin 23 and a lower sliding pin 24 .

[0069] The pull rod 21 includes an upper guide rod 211 and a lower guide rod 212 . The upper guide rod 211 is provided with an upper guide groove 213 , and the lower guide rod 212 is provided with a lower guide groove 214 . The pull rod 21 is also provided with a traction steering pin hole 215 .

[0070] The upper guide rod 211 and the lower guide rod 212 of the pull rod 21 are both long rods, with an obtuse angle between their lengths. An upper guide groove 213 runs along the length of the upper guide rod 211, while a lower guide groove 214 runs along the length of the lower guide rod 212. The upper guide rod 211 and the lower guide rod 212 are connected at one end, with a traction steering pin hole 215 provided at the connection. The lengths of both the upper guide groove 213 and the lower guide groove 214 pass through the center of the traction steering pin hole 215.

[0071] The traction rotation pin 22 passes through the traction steering pin hole 215 and the first pin hole 13 to achieve rotational cooperation between the pull rod 21 and the boom 10 .

[0072] The upper sliding pin 23 is slidably engaged with the upper guide groove 213 , that is, the upper sliding pin 23 can slide in the upper guide groove 213 along the length direction of the upper guide groove 213 and be connected to the third pin hole 32 of the operating member 30 .

[0073] The lower sliding pin 24 is slidably engaged with the lower guide slot 214 , that is, the lower sliding pin 24 can slide in the lower guide slot 214 along the length direction of the lower guide slot 214 and is connected to the deflection member 40 .

[0074] When the operating member 30 slides vertically (or rises and falls), it causes the upper sliding pin 23 to rise and fall. Because the upper sliding pin 23 slides and engages with the upper guide slot 213, the rising and falling upper sliding pin 23 causes the pull rod 21 to rotate, with the center of rotation being the center of the traction steering pin hole 215. Specifically, when the operating member 30 descends, the pull rod 21 rotates clockwise, and when the operating member 30 ascends, the pull rod 21 rotates counterclockwise.

[0075] Combined with attachment Figure 6 As shown, the deflector 40 includes a deflector plate 41 and a deflection rotation pin 42 .

[0076] The deflection plate 41 includes a positioning arm 411 and a rotating arm 412 connected to each other. The rotating arm 412 is provided with a deflection pin hole 43 and a sliding pin hole 44 ; the lower sliding pin 24 passes through the sliding pin hole 44 .

[0077] The deflection rotation pin 42 passes through the deflection pin hole 43 and the second pin hole 14 to achieve the rotational cooperation between the deflection plate 41 and the boom 10. When the lower sliding pin 24 moves along the lower sliding groove, the deflection plate 41 is driven to rotate around the center of the deflection pin hole 43.

[0078] The lower sliding pin 24 also slides with the deflection guide groove 15. This makes the lower sliding pin 24 slide more smoothly, avoids the deflection plate 41 from deflecting, ensures the accuracy of the deflection of the deflection plate 41 driven by the operating member 30, and thus makes the horizontal centering accuracy of the steel cage higher.

[0079] The tie rods 21 and deflection plates 41 are positioned on opposite sides of the boom 10. This ensures uniform force distribution between the tie rods 21 and the deflection plates 41. The surfaces of the deflection plates 41 engage frictionally with the surface of the flat plate structure 12 of the boom 10, preventing loosening or shaking of the deflection plates 41 and further improving the horizontal centering accuracy of the reinforcement cage.

[0080] In this embodiment, the length of the positioning arm 411 is preferably longer than the length of the rotating arm 412. One end of the rotating arm 412 intersects with one end of the positioning arm 411, and a deflection pin hole 43 is provided at the intersecting end. When the deflection plate 41 rotates, the positioning arm 411 rotates synchronously with the center of the deflection pin hole 43 as the center. The end of the positioning arm 411 away from the deflection pin hole 43 plays a positioning role. When the horizontal centering of the steel cage is performed, the end of the positioning arm 411 away from the deflection pin hole 43 is pressed against the wall of the pile foundation hole. In addition, the positioning arm 411 can also serve as an auxiliary unhooking function. When the hook 11 needs to be removed from the steel cage reinforcement 90, for more efficient unhooking, the operating member 30 can be used to drive the deflection plate 41 to rotate, causing the positioning arm 411 to push and squeeze the steel cage reinforcement 90 in the hook 11, so that the steel cage reinforcement 90 is detached from the opening of the hook 11.

[0081] like Figure 7The figure shows the installation device of the present invention being lowered into a pile foundation hole, with hook 11 positioned on one side of the reinforcement bar at the upper end of the steel cage in the pile foundation hole. By moving the suspension rod 10 horizontally toward the reinforcement bar 90 of the steel cage, hook 11 can hook onto the reinforcement bar 90.

[0082] like Figure 8 The figure shows a schematic diagram of the hook 11 at the lower end of the suspension rod 10 of the present invention hooking the reinforcement bar 90 of the steel cage and the operating member 30 closing the opening of the hook 11. When the hook 11 hooks the reinforcement bar 90 of the steel cage and the operating member 30 is driven to descend, the operating member 30 drives the pull rod 21 to rotate, and the rotating pull rod 21 drives the deflection plate 41 to rotate, as shown in FIG. Figure 8 As shown, when the operating member 30 descends, the deflection plate 41 rotates clockwise, and when one end of the positioning arm 411 of the deflection plate 41 away from the deflection pin hole 43 abuts against the hole wall of the pile foundation hole, the horizontal centering positioning of the steel cage is achieved.

[0083] like Figure 9 The figure shows the structure of the hook 11 at the lower end of the suspension rod 10 of the present invention being detached from the reinforcement cage rib 90. To assist in the detachment, the operating member 30 is pulled upward, causing it to rise, driving the deflector plate 41 to rotate counterclockwise. The positioning arm 411 of the deflector plate 41 squeezes the reinforcement cage rib 90, thereby moving the hook 11 in the direction opposite to the squeezing force. This assists in the detachment of the hook 11 and improves the efficiency of the installation device removal.

[0084] Based on the same inventive concept, the present invention provides a method for using a steel cage installation device, comprising the following steps:

[0085] Use lifting equipment and slings to lower the steel cage into the pile foundation hole, and hang the steel cage near the design elevation and design point.

[0086] Multiple (two or three or more) installation devices of the present invention are lowered into the pile foundation hole provided with a steel cage, and the multiple installation devices are evenly distributed along the circumference of the steel cage, so that the hook 11 of the suspension rod 10 of each installation device hooks the steel cage.

[0087] In this step, the installation device of the present invention can be extended according to specific circumstances to meet the needs of different pile foundation hole depths.

[0088] According to the designed elevation of the rebar cage, the height of each suspender rod 10 is adjusted so that the actual elevation of the rebar cage is within the error range of the designed elevation, completing the elevation positioning of the rebar cage. The height adjustment method of the suspender rod 10 has been described above, and the same method can be used here, namely, using the first adjustment device 60 on the suspender rod 10 to precisely adjust the height of the suspender rod 10. After the elevation positioning of the rebar cage is completed, the suspender rod 10 and the operating member 30 need to be fixed. The suspender rod 10 and the operating member 30 are locked and fixed using the self-locking device 80. Pass the shoulder beam 100 through the lifting hole 53 of the lifting member 50.

[0089] Push and pull the operating member 30 of each installation device so that the deflection member 40 of each installation device is deflected to the initial state. The height of the operating member 30 at this time is set as the initial height, and the initial height value is recorded. In the initial state, the deflection member 40 of each installation device is the same as the maximum horizontal distance of its suspension rod 10, and the maximum horizontal distance is less than the minimum horizontal distance between the suspension rod 10 and the wall of the pile foundation hole. Push down each operating member 30 so that each deflection member 40 is deflected to abut against the wall of the pile foundation hole. Fine-tune the height of each operating member 30 so that the difference between the height of each operating member 30 and the initial height value is equal, thereby completing the horizontal centering of the steel cage. Since multiple installation devices are evenly distributed around the steel cage, and the deflection member 40 of each installation device is in the initial state, the initial height of the corresponding operating member 30 is the same. In fact, the deflection amplitude of each deflection member 40 in the initial state is also the same. Therefore, when the operating member 30 rises or falls by the same height difference, the deflection amplitude of each deflection member 40 is also the same. Therefore, there is no need to enter the pile foundation hole to observe or measure the deflection amplitude of the deflection member 40. Simply observing that the difference between the height of the operating member 30 and the initial height is equal and that each deflection plate 41 abuts the wall of the pile foundation hole can determine that the horizontal alignment of the reinforcement cage meets the requirements. The second adjustment device 70 can be used to fine-tune the height of the operating member 30, thereby fine-tuning the deflection amplitude of the deflection member 40, thereby improving the horizontal alignment accuracy of the reinforcement cage.

[0090] Once the cage is horizontally aligned, the locking device secures the operating member 30. The lifting equipment and slings are removed, and the cage's suspension is completely handled by the installation device of the present invention. Now that the cage is precisely positioned at the designed elevation and location, the guide tube, hopper, and other auxiliary tools can be installed, the shoulder beam 100 secured, and the pile foundation concrete poured.

[0091] Once the installation device is ready for removal, release the locking device securing the operating member 30 and the boom 10. Pull up on the operating member 30 to rotate the deflector plate 41 in the opposite direction, dislodging the hook 11 from the reinforcement cage rib 90. The hook 11 can then be removed from the reinforcement cage. The entire installation device can then be removed from the pile foundation hole. Clean the installation device, air dry all components, and apply oil to prevent rust. Store the components in a safe location for future use.

[0092] It is important to note that during this step, special attention should be paid to the timing of disassembly to prevent the cage from sinking or floating, and to prevent the concrete from solidifying and becoming unable to remove the installation device. Generally, disassembly is done after the pile foundation concrete is poured and before the concrete around the reinforcement 90 of the cage loses fluidity.

[0093] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A steel cage installation device, characterized in that: include: A hanger rod, the lower end of which is provided with a hook for hanging the steel cage; A traction rotating member is rotatably matched with the boom, and an upper guide groove and a lower guide groove are provided on the traction rotating member; an operating member, disposed on one side of the boom, wherein the operating member is slidably engaged with the upper guide groove to drive the traction rotating member to rotate; and a deflection member, rotatably engaged with the boom, the deflection member also slidably engaged with the lower guide slot, for deflecting under the traction action of the rotating traction rotating member; The suspension rod is provided with a first pin hole; The traction rotating member includes: A pull rod, the pull rod comprising an upper guide rod and a lower guide rod, the upper guide rod being provided with the upper guide groove, the lower guide rod being provided with the lower guide groove, and the pull rod being further provided with a traction steering pin hole; A traction rotation pin passes through the traction steering pin hole and the first pin hole to achieve rotational cooperation between the pull rod and the boom; an upper sliding pin, slidingly engaged with the upper guide groove and connected to the operating member; and a lower sliding pin, slidingly engaged with the lower guide slot and connected to the deflecting member; The suspension rod is provided with a second pin hole; The deflecting member comprises: The deflection plate comprises a positioning arm and a rotating arm connected to each other, wherein the rotating arm is provided with a deflection pin hole and a sliding pin hole; the lower sliding pin passes through the sliding pin hole; and a deflection rotation pin, passing through the deflection pin hole and the second pin hole, so as to realize the rotational cooperation between the deflection plate and the suspension rod; The boom is provided with an arc-shaped deflection guide groove, the center of which coincides with the center of the second pin hole, and the lower sliding pin is also slidably engaged with the deflection guide groove; The pull rod and the deflection plate are respectively arranged on two opposite sides of the suspension rod.

2. The steel cage installation device according to claim 1, characterized in that: The installation device also includes: a lifting member, wherein the lifting member is provided with a first guide hole and a second guide hole, the lifting rod passes through the first guide hole, and the operating member passes through the second guide hole; a first adjusting device, cooperating with the suspension rod and used to adjust the fitting depth between the suspension rod and the first guide hole; and The second adjusting device cooperates with the operating member and is used to adjust the fitting depth between the operating member and the second guide hole.

3. The steel cage installation device according to claim 2, characterized in that: The first adjusting device includes a first adjusting nut and a first threaded segment, the first threaded segment is provided on the suspension rod, the first adjusting nut is provided above the first guide hole, and is sleeved on the suspension rod and cooperates with the first threaded segment; The second adjusting device includes a second adjusting nut and a second threaded segment. The second threaded segment is arranged on the operating member. The second adjusting nut is arranged above the second guide hole and is sleeved on the operating member to cooperate with the second threaded segment.

4. The steel cage installation device according to claim 2, characterized in that: The installation device also includes a self-locking device, which is arranged on the lifting member and is used to lock and fix the lifting rod and the operating member to the lifting member.

5. The steel cage installation device according to claim 1, characterized in that: The suspension rod is provided with a third guide hole above and / or below the opening of the hook, and the operating member is also slidably matched with the third guide hole to open or close the opening of the hook.

6. The reinforcement cage installation device according to any one of claims 1 to 5, characterized in that: The suspension rod and the operating member are both rods or pipes with adjustable lengths.

7. A method for using the reinforcement cage installation device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Lowering a plurality of the installation devices into a pile foundation hole provided with a steel cage, and evenly distributing the plurality of installation devices along the circumference of the steel cage, so that the hook of the suspension rod of each installation device hooks the steel cage; According to the design elevation of the steel cage, the height of each of the hangers is adjusted so that the actual elevation of the steel cage is within the error range of the design elevation, thereby completing the elevation positioning of the steel cage; Push and pull the operating member of each of the installation devices so that the deflection members of each of the installation devices are deflected to an initial state, set the height of the operating member at this time as the initial height, and record the initial height value; wherein, the deflection member of each of the installation devices in the initial state is the same as the maximum horizontal distance of its suspension rod, and the maximum horizontal distance is less than the minimum horizontal distance between the suspension rod and the hole wall of the pile foundation hole; push down each of the operating members so that each of the deflection members is deflected to abut against the hole wall of the pile foundation hole, and fine-tune the height of each of the operating members so that the difference between the height of each of the operating members and the initial height value is equal, thereby completing the horizontal centering positioning of the steel cage; Fix the steel cage and pour the pile foundation concrete; After the conditions for dismantling the installation device are met, the operating member is pulled up to rotate the deflection member in the opposite direction to push out the hook on the steel cage, thereby separating the hook from the steel cage, and taking the installation device out of the pile foundation hole to complete the dismantling of the installation device.

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