Concrete bored pile reinforcement cage anti-deviation device

Abstract

This invention discloses a device for preventing the displacement of a reinforced concrete pile rebar cage. It includes a support base surrounding the bottom of the rebar cage, a support rod on the support base, and a pusher on the side of the support rod facing the rebar cage. The pusher's pushing end is connected to a limiting rod, which is connected to a variable ring with a variable radius on the side facing the rebar cage. A support plate is positioned on top of the support rod, above the rebar cage. A laser emitter is located at the center of the side of the support plate facing the rebar cage, and multiple rangefinders are also arranged around the laser emitter on the same side. This invention uses the laser emitter to locate the axis of the rebar cage and the rangefinders to determine the diameter of the rebar cage, thus fixing the position of the variable ring and preventing displacement.

Description

Technical Field

[0001] This invention relates to the field of bridge pile foundation construction technology, and in particular to a device for preventing the displacement of the reinforcing cage of a cast-in-place concrete pile. Background Technology

[0002] Bridge pile foundations, as crucial structures for transferring bridge loads to deep soil (rock), consist of a reinforcing cage and cast-in-place concrete, forming a single pile foundation. The accurate positioning of the reinforcing cage directly impacts the performance of the pile foundation. Before underwater concrete pouring of cast-in-place piles, the reinforcing cage is lowered into the pile hole. Traditionally, the planar positioning of the reinforcing cage is achieved using welded lugs or concrete spacers. However, in actual construction, these welded lugs or concrete spacers are prone to deformation and damage. Furthermore, disturbances during concrete pouring can cause the reinforcing cage to shift, resulting in misalignment between the cage's end axis and the pile hole's axis. This leads to uneven protective layer thickness, making it difficult to meet design requirements on-site.

[0003] To overcome the aforementioned shortcomings, anti-deviation devices are currently used on construction sites to limit the position of the reinforcing cage in cast-in-place concrete piles and prevent it from shifting. Current anti-deviation devices use multiple longitudinally distributed and identical rings to wrap around the reinforcing cage before construction. These rings are connected vertically and attached to the cage. While this method effectively limits the position of the reinforcing cage, it cannot completely guarantee that the axis of the cage's end coincides with the axis of the pile hole. For reinforcing cages of different diameters, multiple rings of different sizes need to be replaced and the anti-deviation device remade, which is obviously inconvenient to operate during construction. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a concrete cast-in-place pile reinforcement cage anti-deviation device. The device uses a laser emitter to position the axis of the reinforcement cage and a rangefinder to determine the diameter of the reinforcement cage, thereby fixing the position of the reinforcement cage with a variable ring. At the same time, based on the support mechanism such as support rods and support seats around the reinforcement cage, the position of the variable ring will not shift, thus effectively limiting and preventing the reinforcement cage from deviating.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a concrete cast-in-place pile reinforcement cage anti-deviation device, including a support base arranged around the bottom of the reinforcement cage, a support rod arranged on the support base, a pusher arranged on the side of the support rod facing the reinforcement cage, the pusher being slidably connected to the surface of the support rod by a first driver, a limit rod connected to the pushing end of the pusher, the limit rod being connected to a variable ring with a variable radius on the side facing the reinforcement cage, and the variable ring being in close contact with the reinforcement cage by changing its own radius;

[0006] A support plate is provided at the top of the support rod, and the support plate is located above the steel cage. A laser emitter is provided at the center of the side of the support plate facing the steel cage. Multiple rangefinders are also provided on the side of the support plate facing the steel cage, and the rangefinders are distributed around the laser emitter.

[0007] The anti-deviation device also includes a processor and a power supply. The first driver, the thruster, the rangefinder, and the variable ring are respectively signal-connected to the processor, and the laser emitter, the processor, the first driver, the thruster, the rangefinder, and the variable ring are respectively electrically connected to the power supply.

[0008] Furthermore, on the side of the support plate where the laser emitter is located, a plurality of ranging rings are arranged sequentially from the inside to the outside. The plurality of ranging rings are arranged in concentric circles, and each ranging ring is provided with at least one rangefinder.

[0009] Furthermore, each of the ranging rings is uniformly equipped with multiple ranging instruments.

[0010] Furthermore, there are multiple variable rings, which are arranged longitudinally in sequence, and each variable ring is connected to the limiting rod.

[0011] Furthermore, the variable ring is composed of several connecting rods and several hinges with adjustable hinge angles, and the number of connecting rods is equal to the number of hinges;

[0012] The connecting rod and the hinge are connected in sequence to form a ring, and two adjacent connecting rods are hinged through one of the hinges;

[0013] The hinge is signal-connected to the processor and electrically connected to the power supply.

[0014] Furthermore, the limiting rod is connected to any of the connecting rods in the variable ring.

[0015] Furthermore, the bottom of the support base is provided with multiple rollers, which are driven by a second driver;

[0016] The second driver is signal-connected to the processor and electrically connected to the power supply.

[0017] Furthermore, the support rod has a groove along its longitudinal direction on the side facing the steel cage, and a slider is slidably connected to the groove. The slider is connected to the pusher, and the slider is driven by a third driver to slide up and down on the groove.

[0018] The third driver is signal-connected to the processor and electrically connected to the power supply.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] This invention provides a device for preventing the displacement of a concrete cast-in-place pile reinforcement cage. The device uses a laser emitter to locate the axis of the reinforcement cage and a rangefinder to determine the diameter of the reinforcement cage. This allows a variable ring to fix the position of the reinforcement cage. At the same time, the support mechanism around the reinforcement cage, such as support rods and support seats, ensures that the position of the variable ring will not shift, thereby effectively limiting and preventing the reinforcement cage from shifting.

[0021] This invention provides a device for preventing the deflection of a concrete cast-in-place pile reinforcement cage. The device can be easily adjusted according to the axis of the reinforcement cage by using the rollers at the bottom of the support base and the positioning laser emitted by the laser generator, so that the device can be aligned with the axis of the reinforcement cage as soon as possible.

[0022] This invention provides a device for preventing the displacement of a concrete cast-in-place pile reinforcement cage. The variable ring in the device changes its diameter by altering the hinge angle of each hinge, thus making the device applicable to reinforcement cages of various sizes.

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a concrete cast-in-place pile reinforcement cage anti-deviation device provided by the present invention.

[0025] Figure 2 This is a schematic diagram of the distribution structure of the laser emitter and rangefinder on the support plate in this invention.

[0026] Figure 3 This is a schematic diagram of the variable ring structure in this invention when the radius is large.

[0027] Figure 4 This is a schematic diagram of the variable ring in this invention when it has a small radius.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Support rod; 2. Slide groove; 3. Pusher; 4. Support base; 5. Roller; 6. Variable ring; 6-1. Connecting rod; 6-2. Hinge; 7. Limiting rod; 8. Slider; 9. Reinforcing cage; 10. Support plate; 11. Laser emitter; 12. Rangefinder; 13. Rangefinder ring. Detailed Implementation

[0030] like Figure 1-4As shown, the present invention provides a concrete cast-in-place pile reinforcement cage anti-deviation device, including a support base 4 arranged around the bottom of the reinforcement cage 9, a support rod 1 arranged on the support base 4, a pusher 3 arranged on the side of the support rod 1 facing the reinforcement cage 9, the pusher 3 being slidably connected to the surface of the support rod 1 by a first driver, a limit rod 7 being connected to the pushing end of the pusher 3, the limit rod 7 being connected to a variable ring 6 with a variable radius on the side facing the reinforcement cage 9, the variable ring 6 being in close contact with the reinforcement cage 9 by changing its own radius;

[0031] A support plate 10 is provided on the top of the support rod 1. The support plate 10 is located above the steel cage 9. A laser emitter 11 is provided at the center of the side of the support plate 10 facing the steel cage 9. A plurality of rangefinders 12 are also provided on the side of the support plate 10 facing the steel cage 9. The rangefinders 12 are distributed around the laser emitter 11.

[0032] The anti-deviation device also includes a processor and a power supply. The first driver, the thruster 3, the rangefinder 12, and the variable ring 6 are respectively connected to the processor via signal. The laser emitter 11, the processor, the first driver, the thruster 3, the rangefinder 12, and the variable ring 6 are respectively connected to the power supply via electrical connection.

[0033] When using the anti-deviation device of the present invention, the anti-deviation device is installed around the steel cage 9 so that the support plate 10 is directly above the steel cage 9. The position of the anti-deviation device is adjusted so that the laser emitted by the laser emitter 11 hits the axis of the steel cage 9. The laser is located on the axis of the steel cage 9. At this time, it is considered that the anti-deviation device has completed the position adjustment.

[0034] After adjusting the position of the anti-deviation device, the distance detected by the rangefinder 12 of the anti-deviation device will be significantly smaller than that detected by the rangefinder 12 located above the rebar cage 9. Therefore, the processor determines the diameter of the rebar cage 9 based on the position of the rangefinder 12 with the smaller distance, and adjusts the diameter of the variable ring 6 according to the diameter of the rebar cage 9. At the same time, the pusher 3 is pushed forward, and finally the variable ring 6 contacts the outside of the rebar cage 9 to fix the position of the rebar cage 9. During the construction process, the position of the variable ring 6 will be moved upward in sequence. At this time, the first driver needs to move the pusher 3 in the vertical direction of the support rod 1.

[0035] In this invention, for ease of understanding, the steel cage 9 uses Figure 1 The dashed line in the middle represents...

[0036] This invention uses a laser emitter 11 to position the axis of the reinforcing cage 9 and a rangefinder 12 to determine the diameter of the reinforcing cage 9. This allows the variable ring 6 to fix the position of the reinforcing cage 9. Simultaneously, the support mechanism around the reinforcing cage 6, including the support rod 1 and support base 4, supports the anti-deviation device, ensuring its stability and preventing the variable ring 6 from shifting. This effectively limits and prevents the reinforcing cage 9 from deviating. Furthermore, the rollers at the bottom of the support base, combined with the positioning laser emitted by the laser generator, allow for easy adjustment of the anti-deviation device's position according to the reinforcing cage's axis, ensuring the device quickly aligns with the cage's center.

[0037] This invention further optimizes the aforementioned anti-deviation device. On one side of the support plate 10 where the laser emitter 11 is located, a plurality of ranging rings 13 are arranged sequentially from the inside to the outside. The plurality of ranging rings 13 are concentrically distributed, and each ranging ring 13 is equipped with at least one rangefinder 12. Furthermore, a plurality of rangefinders 12 are evenly distributed on each ranging ring 13.

[0038] The present invention has multiple ranging rings 13, which is equivalent to being able to detect multiple steel cages 9 with different diameters. Since the steel cage 9 is also cylindrical, each ranging ring 13 has at least one ranging instrument 12. Each ranging ring 13 has a ranging instrument 12 representing the size of a steel cage 9. Therefore, each ranging ring 13 has at least one ranging instrument 12. Figure 2 The dotted line in the figure represents the ranging ring 13. Of course, the best way is to evenly set multiple rangefinders 12 on each ranging ring 13 to eliminate erroneous data. In this way, as long as multiple rangefinders 12 on a ranging ring 13 detect the steel cage 9, even if one or two do not detect it, it will not cause the variable ring 6 to change in size.

[0039] In this invention, the diameter of the reinforcing cage 9 can also be adjusted according to a human setting, and the human setting of the size has higher authority than other values. That is to say, even if the rangefinder 12 detects that the diameter of the reinforcing cage 9 is 1 meter, but the human setting of the reinforcing cage 9 is 80 centimeters, the diameter adjustment of the variable ring 6 will also be adjusted according to the human setting of 80 centimeters.

[0040] In this invention, in order to more stably limit and support the steel cage 9, there are multiple variable rings 6, which are arranged longitudinally in sequence, and each variable ring 6 is connected to the limiting rod 7.

[0041] In this invention, the structure of the variable ring 6 is further defined. The variable ring 6 is composed of a plurality of connecting rods 6-1 and a plurality of hinges 6-2 with adjustable hinge angles. The number of connecting rods 6-1 is equal to the number of hinges 6-2.

[0042] The connecting rod 6-1 and the hinge 6-2 are connected in sequence to form a ring, and two adjacent connecting rods 6-1 are hinged through one hinge 6-2;

[0043] The hinge 6-2 is signal-connected to the processor and electrically connected to the power supply.

[0044] In this invention, the variable ring 6, according to the required diameter, controls each hinge 6-2 according to pre-set rules, causing them to transform to a suitable angle, ultimately resulting in a ring, for example... Figure 3 and Figure 4 , Figure 3 It refers to the larger diameter variable ring 6. Figure 4 It is the variable ring 6 with a smaller diameter.

[0045] To ensure the stability of the connection between the variable ring 6 and the limiting rod 7, and to guarantee the consistent height of the variable ring 6 at various positions during operation, the limiting rod 7 is connected to any one of the connecting rods 6-1 in the variable ring 6. Each variable ring 6 is connected to at least two limiting rods 7, and the two limiting rods 7 are positioned relative to each other.

[0046] The present invention provides a device for preventing the displacement of a concrete cast-in-place pile reinforcement cage, wherein the variable ring 6 changes its diameter by changing the hinge angle of each hinge 6-2, thereby making the device applicable to reinforcement cages 9 of various sizes.

[0047] In this invention, in order to facilitate the position adjustment of the anti-deviation device and make the laser in the anti-deviation device coincide with the axis position in the steel cage 9 as soon as possible, the bottom of the support base 4 is provided with multiple rollers 5, which are driven by a second driver; the second driver is signal-connected to the processor and electrically connected to the power supply.

[0048] Construction workers can communicate with the processor, either remotely or via mobile phone, so that the processor controls the second driver, which in turn moves the roller 5 to the appropriate position, ensuring that the laser emitted by the anti-deviation device coincides with the axis of the steel cage 9.

[0049] In this invention, since the pusher 3 moves up and down on the support rod 1, the structure proposed in this invention is as follows: a groove 2 is opened along the longitudinal direction on the side of the support rod 1 facing the steel cage 9, a slider 8 is slidably connected on the groove 2, the pusher 3 is connected to the slider 8, and the slider 8 is driven to slide up and down on the groove 2 by a third driver; the third driver is signal connected to the processor, and the third driver is electrically connected to the power supply.

[0050] It should be noted that the steel cage 9 is not included among the components of this invention. Furthermore, the processor supports external communication via remote control or mobile phone. Under the direction of construction personnel, the processor controls and operates the anti-deviation device of this invention, thereby enabling construction personnel to operate the anti-deviation device.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A device for preventing the deflection of the reinforcing cage in a cast-in-place concrete pile, characterized in that, The system includes a support base (4) arranged around the bottom of the steel cage (9), a support rod (1) arranged on the support base (4), a pusher (3) arranged on the side of the support rod (1) facing the steel cage (9), the pusher (3) being slidably connected to the surface of the support rod (1) by a first driver, a limit rod (7) being connected to the pushing end of the pusher (3), the limit rod (7) being connected to a variable ring (6) with a variable radius on the side facing the steel cage (9), the variable ring (6) being in contact with the steel cage (9) by changing its own radius; A support plate (10) is provided on the top of the support rod (1). The support plate (10) is located above the steel cage (9). A laser emitter (11) is provided at the center of the side of the support plate (10) facing the steel cage (9). A plurality of rangefinders (12) are also provided on the side of the support plate (10) facing the steel cage (9). The rangefinders (12) are distributed around the laser emitter (11). The anti-deviation device also includes a processor and a power supply. The first driver, the thruster (3), the rangefinder (12), and the variable ring (6) are respectively connected to the processor via signals. The laser emitter (11), the processor, the first driver, the thruster (3), the rangefinder (12), and the variable ring (6) are respectively connected to the power supply via electrical connections.

2. The anti-deflection device for reinforced concrete piles according to claim 1, characterized in that, The support plate (10) has multiple ranging rings (13) arranged sequentially from the inside to the outside on one side where the laser emitter (11) is located. The multiple ranging rings (13) are arranged in concentric circles, and each ranging ring (13) has at least one rangefinder (12).

3. A device for preventing the deflection of a reinforcing cage in a cast-in-place concrete pile according to claim 2, characterized in that, Each of the ranging rings (13) is uniformly provided with a plurality of rangefinders (12).

4. A device for preventing the deflection of a reinforcing cage in a cast-in-place concrete pile according to claim 1, characterized in that, There are multiple variable rings (6), which are arranged longitudinally in sequence, and each variable ring (6) is connected to the limiting rod (7).

5. A device for preventing the deflection of a reinforcing cage in a cast-in-place concrete pile according to claim 1, characterized in that, The variable ring (6) is composed of several connecting rods (6-1) and several hinges (6-2) with adjustable hinge angles. The number of connecting rods (6-1) is equal to the number of hinges (6-2). The connecting rod (6-1) and the hinge (6-2) are connected in sequence to form a ring, and two adjacent connecting rods (6-1) are hinged through one of the hinges (6-2); The hinge (6-2) is signal-connected to the processor and electrically connected to the power supply.

6. A device for preventing the deflection of a reinforcing cage in a cast-in-place concrete pile according to claim 5, characterized in that, The limiting rod (7) is connected to any one of the connecting rods (6-1) in the variable ring (6).

7. A device for preventing the deflection of a reinforcing cage in a cast-in-place concrete pile according to claim 1, characterized in that, The support base (4) is provided with a plurality of rollers (5) at its bottom, and the rollers (5) are driven by a second driver; The second driver is signal-connected to the processor and electrically connected to the power supply.

8. A device for preventing the deflection of a reinforcing cage in a cast-in-place concrete pile according to claim 1, characterized in that, The support rod (1) has a groove (2) on its longitudinal direction facing the steel cage (9). A slider (8) is slidably connected to the groove (2). The pusher (3) is connected to the slider (8). The slider (8) is driven by the third driver to slide up and down on the groove (2). The third driver is signal-connected to the processor and electrically connected to the power supply.

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