A deep pile foundation reinforcement cage pouring anti-deviation construction device

Abstract

This invention provides a construction device for preventing deviation during deep pile foundation reinforcement cage pouring, belonging to the field of building construction technology. It includes a reinforcement cage and a pile foundation hole, and further includes a fixed support frame positioned above the pile foundation hole. When lowering the reinforcement cage, a limiting clamp movable inside the fixed support frame adjusts the cage's position. This invention uses a concrete vibrator positioned between the pile foundation hole and the reinforcement cage to vibrate the concrete. This prevents the vibration force from directly acting on the reinforcement cage, avoiding synchronous vibration. Simultaneously, the concrete vibrator can rotate along the reinforcement cage during vibration; this rotational and mixed vibration improves the overall fluidity of the concrete, avoids blind spots in vibration, and evenly distributes the vibration force towards the concrete layer at the center of the reinforcement cage, improving the efficiency and quality of vibration of the concrete layers inside and outside the reinforcement cage.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more specifically, to a construction device for preventing deviation during the casting of deep pile foundation steel cages. Background Technology

[0002] The main function of the reinforcing cage is similar to that of the longitudinal reinforcement in the column, primarily acting as a tensile force. Concrete has high compressive strength but very low tensile strength, thus constraining the concrete of the pile body to withstand a certain axial tensile force. During the construction of bridges, culverts, or high-rise buildings, pile driving may be required for the foundation. This is done by using machine punching and water-jet drilling to achieve the design depth, then lowering the reinforcing cage into the pile hole, and finally inserting a guide pipe for concrete pouring.

[0003] The prior art, disclosed in CN214614023U, discloses a construction device for preventing deviation during the pouring of deep pile foundation reinforcement cages. The device includes an installation frame, a support plate fixedly connected to the lower end of the installation frame, a lower positioning block fixedly connected to the lower end of the connecting plate, an upper positioning block fixedly connected to the inner side of the installation plate, and a level fixedly connected to the side of the upper surface of the installation frame. This invention allows for the simultaneous lowering of the lower positioning block and the reinforcement cage, using the lower and upper positioning blocks to position the entire reinforcement cage, ensuring it is vertical. The entire process is mechanized, resulting in precise positioning that can be completed by a single person, significantly reducing labor intensity and construction difficulty, decreasing the failure rate of pouring, facilitating the movement of the entire device, and allowing for adjustment. This ensures that the lower and upper positioning blocks are parallel to the inner wall of the pouring hole, making the device suitable for different locations and greatly reducing its limitations.

[0004] However, existing technologies still have certain limitations. Existing technologies fix the reinforcing cage at a single point, and the single fixing device still has the potential for displacement during the lowering of the reinforcing cage. At the same time, after the concrete is poured below the reinforcing cage, a long pole is generally used with a concrete vibrator to vibrate the concrete deep in the pile foundation pit. However, the long pole vibrator is laborious to operate, and it is easy to collide with the reinforcing cage during vibration, causing the reinforcing cage to vibrate synchronously. Synchronous vibration of the reinforcing cage can not only easily cause excessive stress on the reinforcing bars, leading to bending, breakage or detachment of the reinforcing bars, affecting the load-bearing capacity and connection performance of the reinforcing bars, but also cause uneven distribution of aggregate in the concrete, reducing the density and uniformity of the concrete, thereby affecting the strength and durability of the concrete.

[0005] How to invent a construction device to prevent deviation during deep pile foundation steel cage casting has become an urgent problem for those skilled in the art. Summary of the Invention

[0006] To overcome the above shortcomings, the present invention provides a construction device for preventing deviation during deep pile foundation reinforcement cage pouring, which aims to improve the problem that existing technical solutions are prone to synchronous vibration of the reinforcement cage after concrete pouring.

[0007] This invention is implemented as follows:

[0008] This invention provides a construction device for preventing deviation during deep pile foundation reinforcement cage casting, comprising a reinforcement cage frame and a pile foundation hole, and further comprising:

[0009] A fixed support frame is set above the pile foundation hole. When the steel cage is lowered, the steel cage is limited and adjusted by the limiting clamps set inside the fixed support frame to ensure the verticality of the steel cage when it is lowered.

[0010] The movable support frame is located below the fixed support frame. The steel cage is clamped by the fixed clamping blocks set on the inner side wall of the movable support frame. When the steel cage is lowered, the movable support frame clamps the steel cage and slides it on the inner wall of the pile hole to limit and guide the steel cage to descend vertically. At the same time, when it reaches the bottom of the pile hole, the bottom of the steel cage is limited and fixed by the anti-deviation support rod set at the bottom of the movable support frame and the lateral support rod set on the side wall of the movable support frame.

[0011] The ring-shaped support is movably connected to the upper part of the movable support frame. After the movable support frame and the rebar cage reach the bottom of the pile hole, the movement of the anti-deviation support rod causes the ring-shaped support to disengage from the movable support frame. At the same time, the driven gear set inside the fixed support frame drives the ring-shaped support to rotate and rise around the rebar cage. The concrete vibrator set at the bottom of the ring-shaped support vibrates the concrete between the rebar cage and the pile hole. Meanwhile, the screening trough and mixing blades set on the surface of the ring-shaped support mix the passing concrete and screen and blend the aggregate in the concrete.

[0012] Preferably, a fixed support frame is fixedly installed above the pile foundation hole on the ground via support legs. Multiple sets of annularly designed limiting clamps are movably sleeved on the inner side wall of the fixed support frame. A first adjusting stud, threadedly connected to the inside of the limiting clamps, is also rotatably connected to the side wall of the fixed support frame. A set of driven gears is rotatably connected to the inside of the fixed support frame via bearings. A set of drive gears meshing with the driven gears is rotatably connected to the inside of the limiting clamps via bearings. A first drive motor with an output shaft fixedly connected to the drive gears is fixedly installed at the top of the fixed support frame. Multiple sets of second drive motors arranged in annular patterns are fixedly installed inside the driven gears. A winding roller is fixedly installed on the output shaft of the second drive motors. A connecting rope is wound on the outer side wall of the winding roller. The end of the connecting rope extends to the bottom of the driven gear and is connected to an annular bracket. A movable support frame is provided below the annular bracket. Multiple sets of annularly distributed fixed clamps are movably sleeved on the inner side wall of the movable support frame. A second adjusting stud, threadedly connected to the inside of the fixed clamps, is also rotatably connected to the side wall of the movable support frame.

[0013] Preferably, the pile foundation hole, fixed support frame, movable support frame, and ring bracket are designed with the same centerline.

[0014] Preferably, the side wall of the limiting clamp block near the center of the fixed support frame is provided with multiple sets of rollers designed in a ring around the center of the fixed support frame; the outer side wall of the movable support frame is provided with multiple sets of support wheels that contact the inner side wall of the pile hole in a ring.

[0015] Preferably, the movable support frame has a sealed cavity inside, and an anti-deviation support rod is movably and equidistantly fitted inside the sealed cavity. A lateral support rod is movably and equidistantly fitted on the outer wall of the movable support frame. A limiting groove is provided at the bottom of the annular bracket. A set of limiting sliders extending into the limiting groove are also movably and elastically connected inside the annular bracket. Multiple sets of concrete vibrators arranged in a ring are also connected to the bottom of the annular bracket by cables. A set of pressure push rods with their tips extending into the limiting groove are movably and equidistantly fitted at the top of the movable support frame.

[0016] Preferably, a connecting pipe is provided between the inside of the sealed cavity, the anti-deviation support rod, the lateral support rod and the pressure push rod, and the inside of the pipe is filled with hydraulic oil.

[0017] Preferably, the lower edge of the portion of the limiting slider extending into the inner side of the limiting groove is chamfered.

[0018] Preferably, the surface of the annular support has multiple sets of screening grooves that are arranged in a ring shape along the center of the annular support, and the screening grooves are inclined. The surface of the annular support is also designed with stirring blades between the screening grooves.

[0019] Preferably, the width of the screening trough is larger than the diameter of the cast concrete aggregate used in the reinforcing cage.

[0020] Preferably, the connecting rope contains an electrical wire, and the concrete vibrator is electrically connected to the external control center through the connecting rope.

[0021] The beneficial effects of this invention are:

[0022] By using a concrete vibrator placed between the pile hole and the reinforcing cage to vibrate the concrete, the vibration force is prevented from directly acting on the reinforcing cage, avoiding synchronous vibration and preventing bending or breakage of the reinforcing cage, thus ensuring the overall performance of the reinforcing cage. At the same time, the concrete vibrator can rotate along the reinforcing cage during vibration, and the overall fluidity of the concrete can be improved through rotational mixed vibration. In addition, the rotational vibration can effectively avoid blind spots in vibration, and the vibration force can be evenly transmitted to the concrete layer at the center of the reinforcing cage while rotating, improving the efficiency and quality of vibration of the concrete layers inside and outside the reinforcing cage.

[0023] By using two-point positioning with limiting clamps and fixing clamps, the steel cage is simultaneously corrected to align with the center of the pile hole, thus preventing deviation from occurring during the construction of the pile hole below the steel cage and ensuring the accuracy and quality of the steel cage construction.

[0024] As the annular support rotates and rises inside the pile foundation hole, the mixing blades agitate the concrete and guide the aggregates mixed in it. Simultaneously, the aggregates are evenly distributed through the screening trough below the annular support as the annular support rotates. Excess aggregates are then evenly distributed through the rotating screening trough to the bottom of the annular support. This vibration of the concrete agitates and guides the aggregate particles, ensuring even distribution throughout the poured concrete. This prevents stress concentration caused by uneven aggregate distribution. By improving aggregate uniformity, the quality of concrete pouring is effectively enhanced, improving the fluidity and plasticity of subsequent concrete, improving the quality of concrete compaction by the vibrator, and ultimately improving the overall construction quality of the pile foundation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0026] Figure 1This is a schematic diagram of the overall external structure of a deep pile foundation steel cage casting anti-deviation construction device provided by an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of a fixed support frame for a deep pile foundation reinforcement cage casting anti-deviation construction device provided by an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the driven gear in a deep pile foundation reinforcement cage casting anti-deviation construction device provided by an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the overall structure of a movable support frame for a deep pile foundation reinforcement cage casting anti-deviation construction device provided by an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of a movable support frame for a deep pile foundation reinforcement cage casting anti-deviation construction device provided by an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of a movable support frame for a deep pile foundation reinforcement cage casting anti-deviation construction device provided by an embodiment of the present invention;

[0032] Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged view of point A;

[0033] Figure 8 This is a schematic diagram of the internal hydraulic transmission structure of a movable support frame for a deep pile foundation reinforcement cage anti-deviation construction device provided by an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram showing the separation of the movable support frame and the ring bracket of a deep pile foundation steel cage anti-deviation construction device provided by an embodiment of the present invention.

[0035] Figure 10 This is a schematic diagram of the structure of a deep pile foundation reinforcement cage anti-deviation construction device when the reinforcement cage frame is lowered, provided by an embodiment of the present invention.

[0036] Figure 11 This is a schematic diagram of the structure of a ring support lifting device for preventing deviation during deep pile foundation steel cage casting, provided by an embodiment of the present invention.

[0037] Figure 12 This is a schematic diagram of the planar state of the ring support of the deep pile foundation reinforcement cage anti-deviation construction device during lifting, provided by an embodiment of the present invention.

[0038] Figure 13This is a schematic diagram of the structure of a ring-shaped support for mixing and guiding aggregates in a deep pile foundation steel cage casting anti-deviation construction device provided by an embodiment of the present invention.

[0039] In the diagram: 1. Rebar cage; 2. Pile foundation hole; 3. Fixed support frame; 4. Movable support frame; 31. Limiting clamp; 32. First adjusting stud; 33. First drive motor; 34. Drive gear; 35. Driven gear; 41. Ring bracket; 42. Support wheel; 43. Second adjusting stud; 44. Anti-deviation support rod; 45. Sealing cavity; 46. Lateral support rod; 47. Pressure push rod; 48. Limiting slider; 49. Limiting groove; 351. Second drive motor; 352. Rewinding roller; 353. Connecting rope; 411. Screening trough; 412. Mixing blade; 413. Concrete vibrator; 431. Fixed clamp. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example

[0042] Reference Figure 1-13 A construction device for preventing deviation during deep pile foundation reinforcement cage casting includes a reinforcement cage frame 1 and a pile foundation hole 2, and further includes:

[0043] The fixed support frame 3 is set above the pile foundation hole 2. When the steel cage 1 is lowered, the limiting clamp 31, which is movably set inside the fixed support frame 3, is used to limit and adjust the steel cage 1 to ensure the verticality of the steel cage 1 when it is lowered.

[0044] The movable support frame 4 is located below the fixed support frame 3. The steel cage 1 is clamped by the fixed clamping block 431 located on the inner side wall of the movable support frame 4. When the steel cage 1 is lowered, the movable support frame 4 clamps the steel cage 1 and slides it on the inner wall of the pile hole 2 to limit and guide the steel cage 1 to descend vertically. At the same time, when it reaches the bottom of the pile hole 2, the bottom of the steel cage 1 is limited and fixed by the anti-deviation support rod 44 located at the bottom of the movable support frame 4 and the lateral support rod 46 located on the side wall of the movable support frame 4.

[0045] The annular support 41 is movably connected to the upper part of the movable support frame 4. After the movable support frame 4 and the steel cage 1 reach the bottom of the pile hole 2, the movement of the anti-deviation support rod 44 causes the annular support 41 to disengage from the movable support frame 4. At the same time, the driven gear 35 set inside the fixed support frame 3 drives the annular support 41 to rotate and rise around the steel cage 1. The concrete vibrator 413 set at the bottom of the annular support 41 rotates and vibrates the concrete between the steel cage 1 and the pile hole 2. At the same time, the screening trough 411 and the mixing blade 412 set on the surface of the annular support 41 mix the passing concrete and screen and mix the aggregate in the concrete.

[0046] Reference Figure 2-9 Above the pile foundation hole 2, a fixed support frame 3 is fixedly installed on the ground via support legs. Multiple sets of annularly designed limiting clamps 31 are movably sleeved on the inner side wall of the fixed support frame 3. A first adjusting stud 32, threadedly connected to the inside of the limiting clamps 31, is also rotatably connected to the side wall of the fixed support frame 3. A set of driven gears 35 is rotatably connected to the inside of the fixed support frame 3 via bearings. A set of drive gears 34, meshing with the driven gears 35, is rotatably connected to the inside of the limiting clamps 31 via bearings. A first drive motor 33, with its output shaft fixedly connected to the drive gears 34, is fixedly installed on the top of the fixed support frame 3. Multiple sets of second drive motors 351 arranged in a ring are fixedly installed inside the driven gear 35. A take-up roller 352 is fixedly installed on the output shaft of the second drive motor 351. A connecting rope 353 is wound on the outer wall of the take-up roller 352. The end of the connecting rope 353 extends to the bottom of the driven gear 35 and is connected to a ring bracket 41. A movable support frame 4 is provided below the ring bracket 41. Multiple sets of fixed clamps 431 arranged in a ring are movably sleeved on the inner side wall of the movable support frame 4. A second adjusting stud 43 is rotatably connected to the side wall of the movable support frame 4 and is threadedly connected to the inside of the fixed clamps 431.

[0047] Furthermore, the pile foundation hole 2, the fixed support frame 3, the movable support frame 4, and the ring bracket 41 are designed with the same centerline.

[0048] Furthermore, the limiting clamp 31 has multiple sets of rollers arranged in a ring around the center of the fixed support frame 3 on the side wall of the side close to the center of the fixed support frame 3; the outer side wall of the movable support frame 4 has multiple sets of support wheels 42 arranged in a ring around the center of the side wall of the pile hole 2.

[0049] Reference Figure 7-9The movable support frame 4 has a sealed cavity 45 inside, and an anti-deviation support rod 44 is movably and equidistantly fitted inside the sealed cavity 45. A lateral support rod 46 is movably and equidistantly fitted on the outer wall of the movable support frame 4. A limiting groove 49 is opened at the bottom of the annular bracket 41. A set of limiting sliders 48 extending into the limiting groove 49 are also movably and elastically connected inside the annular bracket 41. Multiple sets of concrete vibrators 413 arranged in a ring are also connected to the bottom of the annular bracket 41 by cables. A set of pressure push rods 47 with their tops extending into the limiting groove 49 are movably and equidistantly fitted at the top of the movable support frame 4.

[0050] Furthermore, a connecting pipe is provided between the interior of the sealing cavity 45, the anti-deviation support rod 44, the lateral support rod 46, and the pressure push rod 47, and the pipe is filled with hydraulic oil.

[0051] Furthermore, the lower edge of the portion of the limiting slider 48 extending into the inner side of the limiting groove 49 is chamfered.

[0052] It should be noted that the annular bracket 41 is kept in a limiting engagement by the limiting groove 49 and the limiting slider 48. When the pressure push rod 47 is pushed upward under hydraulic action, the limiting slider 48 can be pushed into the interior of the limiting groove 49 by the chamfered design at the bottom of the limiting slider 48, so that the limiting groove 49 is disengaged from the limiting slider 48.

[0053] Reference Figure 13 The surface of the annular support 41 has multiple sets of screening grooves 411 that are designed to run through the center of the annular support 41 in a ring shape, and the screening grooves 411 are designed to be inclined. The surface of the annular support 41 is also designed with stirring blades 412 between the screening grooves 411.

[0054] Furthermore, the width of the screening trough 411 is greater than the diameter of the cast concrete aggregate used in the reinforcing cage 1.

[0055] It should be noted that when the annular support 41 rotates and rises inside the pile foundation hole 2, the mixing blades 412 can mix the passing concrete and guide the aggregate mixed in the concrete, allowing the aggregate to enter the area below the annular support 41 through the screening trough 411. When passing through a concrete area with relatively dense aggregate, as shown in the figure, the limiting guidance of the screening trough 411 can guide the aggregate to enter the area below the annular support 41 while mixing it. At the same time, excess aggregate is evenly passed through the interior of the subsequently rotating screening trough 411 to the area below the annular support 41 through the rotation of the annular support 41. While vibrating and mixing the concrete, the aggregate particles in the concrete can be mixed and distributed, making them evenly distributed in the poured concrete, effectively improving the construction quality of the concrete. At the same time, by improving the uniformity of the aggregate, the fluidity and plasticity of the subsequent concrete can be improved, the quality of the subsequent concrete vibration by the concrete vibrator 413 can be improved, and the overall construction quality of the pile foundation can be improved.

[0056] Furthermore, the connecting rope 353 is equipped with an electrical wire, and the concrete vibrator 413 is electrically connected to the external control center through the connecting rope 353.

[0057] It should be noted that a control center is provided outside the fixed support frame 3 and the pile foundation hole 2 to control the operation of the limit clamp 31, the second drive motor 351 and the concrete vibrator 413.

[0058] The working principle of this deep pile foundation steel cage casting anti-deviation construction device:

[0059] First, the rebar cage 1 is lifted using a crane. Then, the angle is adjusted so that the rebar cage 1 is slowly lowered vertically into the pile hole 2 along the axis of the rebar cage 1 through the fixed support frame 3 and the movable support frame 4. When the rebar cage 1 passes through the fixed support frame 3 and reaches the center of the movable support frame 4, the second adjusting stud 43 is rotated. This causes the second adjusting stud 43 to push the fixed clamping block 431 towards the center of the movable support frame 4 through the threaded connection between the second adjusting stud 43 and the fixed clamping block 431, thus pressing it against the rebar cage 1. At the same time, by adjusting multiple sets of fixed clamping blocks 431, the rebar cage 1 is pushed. While clamping the rebar cage 1, the fixed clamping block can be used to push the rebar cage 1. The push of block 431 on the rebar cage 1 corrects the bottom position of the rebar cage 1, aligning the center of the rebar cage 1 with the center of the pile hole 2. Simultaneously, the first adjusting stud 32 is turned, and the threaded connection between the first adjusting stud 32 and the limiting clamp 31 drives the limiting clamp 31 to push towards the rebar cage 1, adjusting the position of the rebar cage 1. The two-point positioning of the limiting clamp 31 and the fixing clamp 431 simultaneously corrects the rebar cage 1, aligning the rebar cage 1 with the center of the pile hole 2, preventing deviation of the rebar cage 1 below the pile hole 2 during construction, and ensuring the accuracy and quality of the rebar cage 1 construction.

[0060] As the rebar cage 1 continues to descend, it is kept in a limited position by the limiting clamp 31 and the rollers inside the limiting clamp 31. Since the movable support frame 4 and the rebar cage 1 are fixedly connected by the clamping of the fixed clamp 431, the movable support frame 4 descends synchronously with the rebar cage 1. At the same time, the rotation and limiting of the support wheel 42 on the inner wall of the pile hole 2 keep the movable support frame 4 in a limited position during the descent, so that the rebar cage 1 and the movable support frame 4 remain in a vertical direction and avoid the rebar cage 1 from deviating during the descent. This ensures the accuracy of the rebar cage 1 descent and avoids errors. At this time, the ring bracket 41 and the movable support frame 4 are connected by a snap-fit, and the connecting rope 353 continues to be laid out during the descent of the ring bracket 41.

[0061] When the steel cage 1 reaches the bottom of the pile hole 2, under the pressure of the steel cage 1 and the movable support frame 4, the anti-deviation support rod 44 and the steel cage 1 are inserted into the soil at the bottom of the pile hole 2. During this process, the anti-deviation support rod 44 is inserted into the soil first. As the movable support frame 4 and the anti-deviation support rod 44 continue to sink, the anti-deviation support rod 44 comes into contact with the soil through the baffle installed on the side wall. At this time, under the continuous action of pressure, as the movable support frame 4 descends, the anti-deviation support rod 44 penetrates into the sealed cavity 45. Under the action of hydraulic oil, the ring-shaped side support rod 46 is extended through the pipeline and inserted into the inner side wall of the pile hole 2. By extending the anti-deviation support rod 44 and the side support rod 46, the bottom of the steel cage 1 is fixed with the bottom and side wall of the pile hole 2, thus preventing the steel cage 1 from vibrating and shifting during the subsequent concrete pouring and vibration.

[0062] Simultaneously, the pressure push rod 47 extends during the hydraulic pressure transmission process. Through the chamfered design at the bottom of the limiting slider 48, the limiting slider 48 can be pushed into the limiting groove 49, causing the limiting groove 49 to disengage from the limiting slider 48. When filling and pouring concrete into the pile foundation hole 2, firstly, concrete is filled into the pile foundation hole 2. Then, the first drive motor 33, the second drive motor 351, and the concrete vibrator 413 are started. The second drive motor 351 rotates, driving the winding roller 352 to rotate and wind up the connecting rope 353, causing the annular support 41 to rise. Simultaneously, the first drive motor 33 rotates, driving the drive gear 34 to rotate, which further drives the driven gear 35 to rotate slowly. (Refer to...) Figure 10-12 The ring support 41 rotates during the upward movement. During this process, the concrete vibrator 413 vibrates to compact the concrete inside the pile hole 2. Since the concrete vibrator 413 is positioned between the pile hole 2 and the reinforcing cage 1, the vibration of the concrete vibrator 413 does not directly act on the reinforcing cage 1, thus avoiding synchronous vibration of the reinforcing cage 1 and preventing bending or breakage of the reinforcing cage 1. This ensures the overall performance of the reinforcing cage 1. At the same time, the concrete vibrator 413 can rotate along the reinforcing cage 1 during vibration. The rotational mixed vibration can improve the overall fluidity of the concrete. The rotational vibration can effectively avoid blind spots in the vibration and can evenly transmit the vibration force to the concrete layer at the center of the reinforcing cage 1 while rotating, improving the efficiency and quality of the vibration of the inner and outer concrete layers of the reinforcing cage 1.

[0063] Meanwhile, as the annular support 41 rotates and rises inside the pile foundation hole 2, the mixing blades 412 can mix the passing concrete and guide the aggregate mixed in the concrete, allowing the aggregate to enter the area below the annular support 41 through the screening trough 411. When passing through areas of concrete with relatively dense aggregate, such as... Figure 13As shown, the limiting guide of the screening trough 411 allows the aggregate to be evenly passed through the screening trough 411 and enter the lower part of the annular support 41 while being mixed. At the same time, excess aggregate is evenly passed through the interior of the subsequently rotating screening trough 411 and into the lower part of the annular support 41 by the rotation of the annular support 41. While vibrating the concrete, the aggregate particles in the concrete can be mixed and guided to be evenly distributed in the poured concrete, preventing stress concentration in the concrete caused by excessive or uneven distribution of aggregate in some areas. By improving the uniformity of the aggregate, the pouring quality of the concrete can be effectively improved, the fluidity and plasticity of the subsequent concrete can be improved, the quality of the subsequent concrete vibration by the concrete vibrator 413 can be improved, and the overall construction quality of the pile foundation can be improved.

[0064] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A construction device for preventing deviation during deep pile foundation reinforcement cage casting, comprising a reinforcement cage frame (1) and a pile foundation hole (2), characterized in that, Also includes: The fixed support frame (3) is set above the pile foundation hole (2). When the steel cage (1) is lowered, the limiting clamp (31) inside the fixed support frame (3) is used to limit and adjust the steel cage (1) to ensure the verticality of the steel cage (1) when it is lowered. The movable support frame (4) is set below the fixed support frame (3). The steel cage frame (1) is clamped by the fixed clamping block (431) set on the inner side wall of the movable support frame (4). When the steel cage frame (1) is lowered, the movable support frame (4) clamps the steel cage frame (1) and slides it on the inner wall of the pile hole (2) to limit and guide the steel cage frame (1) so that the steel cage frame (1) descends vertically. At the same time, when it reaches the bottom of the pile hole (2), the anti-deviation support rod (44) set on the bottom of the movable support frame (4) is inserted into the bottom of the pile hole (2) and the lateral support rod (46) set on the side wall of the movable support frame (4) is inserted into the side wall of the pile hole (2) to limit and fix the bottom of the steel cage frame (1). The ring bracket (41) is connected to the upper part of the movable support frame (4) by a snap-fit. After the movable support frame (4) and the steel cage frame (1) reach the bottom of the pile hole (2), the ring bracket (41) is disengaged from the snap-fit ​​of the movable support frame (4) by the movement of the anti-deviation support rod (44). At the same time, the driven gear (35) set inside the fixed support frame (3) drives the ring bracket (41) to rotate and rise around the steel cage frame (1). The concrete vibrator (413) set at the bottom of the ring bracket (41) rotates and vibrates the concrete between the steel cage frame (1) and the pile hole (2). At the same time, the screening trough (411) and the mixing blade (412) set on the surface of the ring bracket (41) mix the passing concrete and screen and mix the aggregate in the concrete.

2. The anti-deviation construction device for deep pile foundation steel cage casting according to claim 1, characterized in that, A fixed support frame (3) is fixedly installed above the pile foundation hole (2) on the ground via support legs. Multiple sets of annularly designed limiting clamps (31) are movably sleeved on the inner side wall of the fixed support frame (3). A first adjusting stud (32) is rotatably connected to the side wall of the fixed support frame (3) and is threadedly connected to the inside of the limiting clamps (31). A set of driven gears (35) is rotatably connected to the inside of the fixed support frame (3) via bearings. A set of drive gears (34) meshing with the driven gears (35) is rotatably connected to the inside of the limiting clamps (31) via bearings. A first drive motor (33) with an output shaft fixedly connected to the drive gears (34) is fixedly installed on the top of the fixed support frame (3). Multiple sets of second drive motors (351) arranged in a ring are fixedly installed inside the driven gear (35). A take-up roller (352) is fixedly installed on the output shaft of the second drive motor (351). A connecting rope (353) is wound on the outer wall of the take-up roller (352). The end of the connecting rope (353) extends to the bottom of the driven gear (35) and is connected to a ring bracket (41). A movable support frame (4) is provided below the ring bracket (41). Multiple sets of fixed clamps (431) arranged in a ring are movably sleeved on the inner side wall of the movable support frame (4). A second adjusting stud (43) is rotatably connected to the side wall of the movable support frame (4) and is threadedly connected to the inside of the fixed clamp (431).

3. The anti-deviation construction device for deep pile foundation reinforcement cage casting according to claim 2, characterized in that, The pile foundation hole (2), fixed support frame (3), movable support frame (4), and ring bracket (41) are designed with the same center line.

4. The anti-deviation construction device for deep pile foundation reinforcement cage casting according to claim 2, characterized in that, The limiting clamp (31) has multiple sets of rollers arranged in a ring along the center of the fixed support frame (3) on the side wall close to the center of the fixed support frame (3); the outer side wall of the movable support frame (4) has multiple sets of support wheels (42) that contact the inner side wall of the pile hole (2) in a ring.

5. The anti-deviation construction device for deep pile foundation reinforcement cage casting according to claim 2, characterized in that, The movable support frame (4) has a sealed cavity (45) inside. The sealed cavity (45) is fitted with a limiting and sealing anti-deviation support rod (44). The outer wall of the movable support frame (4) is fitted with a lateral support rod (46). The bottom of the annular bracket (41) has a limiting groove (49). The inside of the annular bracket (41) is also fitted with a set of limiting sliders (48) extending into the limiting groove (49). The bottom of the annular bracket (41) is also connected by a cable to a set of concrete vibrators (413) arranged in a ring. The top of the movable support frame (4) is fitted with a set of pressure push rods (47) whose top ends extend into the limiting groove (49).

6. The anti-deviation construction device for deep pile foundation reinforcement cage casting according to claim 5, characterized in that, A connecting pipe is provided between the inside of the sealing cavity (45), the anti-deviation support rod (44), the lateral support rod (46), and the pressure push rod (47), and the pipe is filled with hydraulic oil.

7. The anti-deviation construction device for deep pile foundation reinforcement cage casting according to claim 5, characterized in that, The lower edge of the portion of the limiting slider (48) extending into the inner side of the limiting groove (49) is beveled.

8. The anti-deviation construction device for deep pile foundation reinforcement cage casting according to claim 5, characterized in that, The surface of the annular support (41) has multiple sets of screening grooves (411) that are arranged in a ring shape and run through the center of the annular support (41). The screening grooves (411) are inclined. The surface of the annular support (41) is also designed with stirring blades (412) between the screening grooves (411).

9. A construction device for preventing deviation during deep pile foundation reinforcement cage casting according to claim 8, characterized in that, The width of the screening trough (411) is greater than the diameter of the concrete aggregate used in the steel cage (1).

10. A construction device for preventing deviation during deep pile foundation reinforcement cage casting according to claim 5, characterized in that, The connecting rope (353) is equipped with an electrical wire, and the concrete vibrator (413) is electrically connected to the external control center through the connecting rope (353).

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