Pile foundation hole positioning device

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a pile foundation hole positioning device which comprises a positioning cylinder, a positioning lug plate is arranged on the circumference of the positioning cylinder, the positioning lug plate is connected with a plurality of supporting frames used for supporting the positioning cylinder, and a horizontal sensor is fixedly installed on the positioning lug plate. Two laser emitters are arranged on the inner circumferential wall of the positioning cylinder, and laser rays emitted by the two laser emitters intersect perpendicularly. According to the positioning device, all the supporting frames are connected with the positioning lug plates, acting force borne by the supporting frames can be transmitted mutually, the integrity of the device is good, and the influence of external factors on positioning is effectively reduced; moreover, inclination of the device can be found in time through the horizontal sensor, so that the device is corrected in time, it is ensured that the intersection point of the two laser rays is located over the center point of the pile foundation, the pile foundation positioning accuracy is improved, and the hole deviation phenomenon is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a pile foundation hole positioning device. Background Technology

[0002] During building construction, pile foundation construction is carried out to enhance the load-bearing capacity and stability of the building structure, avoid uneven settlement, and control and ensure the quality of building construction. In the pile foundation construction process, crosshair layout is often used for pile foundation positioning. Specifically, after leveling the pile foundation work platform, the center position of the pile foundation is measured, a casing is driven at the pile foundation location, and four protective piles are symmetrically driven around the casing. Two protective piles located in opposite positions are connected by ropes; the intersection of the two ropes is the center position of the pile foundation. However, due to the operating load of mechanical equipment before drilling, the large vibration of drilling operations, and the impact of foundation settlement, especially in karst areas with complex geological structures, undulating rock surfaces, and soft, fluid plastic filling or no filling in the karst caves, the foundation is more prone to settlement, and the position of the protective piles is easily displaced, resulting in the deviation of the layout and positioning marks. Moreover, it is difficult for construction personnel to observe the slight displacement of the protective piles with the naked eye. By the time the construction personnel discover the displacement of the protective piles, the piles may have already been displaced for a long time, ultimately causing the pile foundation borehole to deviate or fail to meet the design requirements, affecting the construction progress and causing waste of resources. Utility Model Content

[0003] The present invention aims to provide a pile foundation hole positioning device to solve the problem of hole deviation that easily occurs during existing pile foundation drilling construction.

[0004] To achieve the above objectives, the present invention provides a pile foundation hole positioning device, comprising a positioning cylinder, a positioning ear plate on the circumference of the positioning cylinder, a plurality of support frames for supporting the positioning cylinder connected to the positioning ear plate, and a horizontal sensor fixedly installed on the positioning ear plate; two laser emitters are provided on the inner circumferential wall of the positioning cylinder, and the laser lines emitted by the two laser emitters intersect perpendicularly.

[0005] The working principle and beneficial effects of this scheme are as follows: First, in this scheme, the support frame is equivalent to the protective pile, and the support frame is connected to the positioning ear plate, which is equivalent to connecting the scattered protective piles. In this way, the force on the support frame can be transferred to each other during the positioning process, and the overall integrity of the device is good. Compared with the design of scattered protective piles, this scheme effectively reduces the impact of mechanical equipment operating load, large drilling operation vibration and foundation settlement on positioning, and improves the accuracy of pile foundation positioning.

[0006] Secondly, in this scheme, the horizontal sensor is used to detect the levelness of the device in real time. Once the support frame shifts and becomes unstable, the positioning ear plate tilts, which can be detected in time by the horizontal sensor. This allows for timely adjustment of the device's position, ensuring that the intersection of the two laser lines is directly above the center point of the pile foundation. This ensures the accuracy of the pile foundation positioning and effectively avoids the occurrence of hole deviation.

[0007] Optionally, a controller and an alarm I are fixedly installed on the positioning ear plate. Both the alarm I and the level sensor are electrically connected to the controller. The level sensor transmits the detected signal to the controller, and the controller controls the alarm I to work according to the received signal.

[0008] In this solution, when the level sensor detects that the positioning ear plate is tilted to a certain extent, the controller controls alarm I to issue an alarm (the alarm is a buzzing sound and / or a light), alerting the construction personnel to deal with the tilting problem of the device in time. This avoids the construction personnel having to constantly pay attention to the level information detected by the level sensor (the level information detected by the level sensor is displayed on the screen), and better ensures that the construction personnel can take timely measures.

[0009] Optionally, the support frame includes a transverse support rod and a longitudinal support rod, the bottom end of which has a pointed tip.

[0010] In this design, the longitudinal support rods are designed with pointed ends, making them easier to insert into the ground.

[0011] Optionally, the lateral support rod is a telescopic rod.

[0012] In this scheme, once the intersection of the two laser lines is located directly above the center point of the pile foundation, construction workers can pull the horizontal support rod to change the insertion point of the longitudinal support rod, thus making the insertion point selectable and avoiding the need to adjust the insertion point of all support frames because some support frames cannot be inserted into the ground.

[0013] Optionally, two laser receivers for receiving laser signals are fixedly installed on the inner wall of the positioning cylinder, and an alarm II is fixedly installed on the positioning ear plate. Both the laser receivers and the alarm II are electrically connected to the controller. The laser receivers transmit the detected signals to the controller, and the controller controls the alarm II to work according to the received signals.

[0014] In this scheme, after the center point of the pile foundation is determined, a round rod (such as a reinforcing bar) is vertically inserted at the center point of the pile foundation. Then, the positioning cylinder is placed over the round rod, and the position of the positioning cylinder is adjusted so that the round rod is located at the intersection of the two laser lines. At this time, the laser receiver cannot receive the laser, and the controller controls the alarm II to issue an alarm (the alarm is a buzzer sound and / or light), indicating to the construction personnel that the positioning cylinder is now coaxial with the center of the pile foundation, that is, the intersection of the two laser lines is located directly above the center of the pile foundation, avoiding the need for the construction personnel to visually observe whether the round rod is located at the intersection of the two laser lines.

[0015] Optionally, the positioning cylinder is provided with three or more sets of limiting components in the circumferential direction. Each set of limiting components includes a radial threaded tube and an adjusting screw. The radial threaded tube passes through the circumferential wall of the positioning cylinder and is arranged along the radial direction of the positioning cylinder. The adjusting screw is threadedly connected to the radial threaded tube.

[0016] After the center point of the pile foundation is determined, a protective casing is installed at the pile foundation location. The casing is quite deep and difficult to move. Therefore, in this solution, a positioning cylinder is placed over the protective casing, keeping the positioning lugs horizontal. Once the intersection of the two laser lines is directly above the center point of the pile foundation, the bottom end of the support frame is inserted into the ground. Then, the adjusting screws are rotated so that the end of each adjusting screw inside the positioning cylinder abuts against the outer circumferential wall of the protective casing. This uses the protective casing to limit the positioning cylinder, preventing radial movement during the positioning process.

[0017] Optionally, the limiting component further includes a scale, which is fixedly connected to the outer peripheral wall of the positioning cylinder and is arranged parallel to the radial threaded tube.

[0018] In this scheme, the amount of screwing in each adjusting screw can be measured using a ruler, thereby determining the coaxiality between the casing and the center of the pile foundation.

[0019] Optionally, the top of the positioning cylinder is provided with two upper extensions, and two laser emitters are respectively mounted on the two upper extensions.

[0020] In this design, the laser emitter is located on the upper extension, and the laser line will not be blocked by the positioning cylinder, making it easy for construction personnel to observe.

[0021] Optionally, the support frame is detachably connected to the positioning ear plate.

[0022] In this design, the support frame and positioning ear plate are detachable for easy storage.

[0023] Optionally, the positioning ear plate is provided with mounting plate I, and the support frame is provided with mounting plate II at one end near the positioning ear plate. Both mounting plate I and mounting plate II are provided with mounting holes for bolts to pass through.

[0024] In this design, the support frame and the positioning ear plate are detachably connected by the use of bolts and nuts. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a pile foundation hole positioning device according to Embodiment 1 of this utility model;

[0026] Figure 2 This is a top view of a pile foundation hole positioning device according to Embodiment 1 of this utility model;

[0027] Figure 3This is a top view of a pile foundation hole positioning device according to Embodiment 2 of this utility model;

[0028] Figure 4 This is a radial sectional view of the positioning cylinder in Embodiment 3 of this utility model. Detailed Implementation

[0029] The following detailed description illustrates the specific implementation method:

[0030] The markings in the accompanying drawings include: positioning cylinder 1, upper extension 110, positioning ear plate 2, support frame 3, transverse support rod 310, outer sleeve 301, inner slide rod 302, longitudinal support rod 320, mounting plate II 4, mounting plate I 5, horizontal sensor 6, controller 7, alarm I 8, laser emitter 9, laser receiver 10, alarm II 11, limit assembly 12, radial threaded tube 121, adjusting screw 122, scale 123, and protective sleeve 13.

[0031] Example 1

[0032] This embodiment is basically as follows: Figure 1 and Figure 2 As shown: A pile foundation hole positioning device includes a positioning cylinder 1. A positioning ear plate 2 is integrally formed on the outer peripheral wall of the positioning cylinder 1. The positioning ear plate 2 is detachably connected to a plurality of support frames 3 for supporting the positioning cylinder 1. Specifically, the support frame 3 includes a transverse support rod 310 and a longitudinal support rod 320. The transverse support rod 310 is a telescopic rod, including an outer sleeve 301 and an inner sliding rod 302. The inner sliding rod 302 is axially slidably connected inside the outer sleeve 301. To prevent the inner sliding rod 302 from rotating circumferentially relative to the outer sleeve 301, in this embodiment, the radial cross section of the outer sleeve 301 and the inner sliding rod 302 is rectangular. An installation piece II 4 is welded to the end of the outer sleeve 301 away from the inner sliding rod 302. The end of the inner sliding rod 302 away from the outer sleeve 301 is welded to the top end of the longitudinal support rod 320. The bottom end of the longitudinal support rod 320 has a pointed tip. An installation piece I 5 is welded on the positioning ear plate 2. Both the installation piece I 5 and the installation piece II 4 have installation holes for bolts to pass through. Thus, after the bolts pass through the mounting holes on mounting plates I5 and II4, they engage with the screws to achieve a detachable connection between the support frame 3 and the positioning ear plate 2. In this embodiment, there are three support frames 3, and the three support frames 3 are evenly distributed along the circumference of the positioning cylinder 1.

[0033] A horizontal sensor 6, a controller 7, and an alarm I8 are fixedly installed on the positioning ear plate 2. Both the horizontal sensor 6 and the alarm I8 are electrically connected to the controller 7. The horizontal sensor 6 transmits the detected signal to the controller 7, and the controller 7 controls the alarm I8 to operate according to the received signal. In this embodiment, the controller 7 is a PLC, the alarm I8 is an audible and visual alarm, and the horizontal sensor 6 is a conventional dual-axis tilt sensor.

[0034] The top of the positioning cylinder 1 is integrally formed with two upper extensions 110, and a laser emitter 9 is fixedly installed on the upper extensions 110. The laser lines emitted by the two laser emitters 9 intersect perpendicularly.

[0035] In practical use, after determining the center point of the pile foundation at the construction site, a round rod (such as a reinforcing bar) is vertically inserted at the center point. Then, the positioning cylinder 1 is fitted over the round rod, and its position is adjusted so that the round rod is located at the intersection of two laser lines (emitted by laser emitter 9). At this point, the intersection of the two laser lines is directly above the center point of the pile foundation. Then, downward pressure is applied to the three support frames 3 simultaneously, causing the bottom end of the longitudinal support rod 320 to insert into the ground (the pointed end of the longitudinal support rod 320 facilitates breaking through the soil layer), thus completing the installation of the positioning device. During the insertion of the longitudinal support rod 320 into the ground, the horizontal sensor 6 continuously monitors the levelness of the positioning ear plate 2. When the horizontal sensor 6 detects that the positioning ear plate 2 is tilted, the controller 7 activates the alarm I8 to emit sound and light, prompting construction personnel to adjust the pressure applied to the support frame 3 in a timely manner. This ensures that the positioning ear plate 2 remains horizontal during its downward movement, thereby ensuring that the intersection of the two laser lines is directly above the center point of the pile foundation.

[0036] In addition, before inserting the longitudinal support rod 320 into the ground, construction personnel can select the insertion point of the longitudinal support rod 320 according to the actual conditions of the construction site to prevent the longitudinal support rod 320 from failing to be inserted into the ground due to encountering solid strata. Specifically, the insertion point of the longitudinal support rod 320 can be changed by pulling the inner sliding rod 302 outward horizontally.

[0037] In this embodiment, since all three support frames 3 are connected to the positioning ear plate 2, the forces acting on the support frames 3 can be transmitted to each other, resulting in good integrity and stability of the positioning device. Thus, when local soil loosens, the force on the support frame 3 corresponding to the loosened soil layer changes, while the force on the support frame 3 outside the loosened soil layer remains stable. The interaction between the three support frames 3 effectively prevents the positioning device from shifting, thereby ensuring that the intersection of the two laser lines is directly above the center point of the pile foundation, thus ensuring the accuracy of the pile foundation positioning. When the soil near all three support frames 3 becomes loose, the force on all three support frames 3 changes, and the positioning device tilts and is no longer horizontal. At this time, after the horizontal sensor 6 detects that the positioning device has tilted to a certain angle, the controller 7 controls the alarm I 8 to emit sound and light, alerting the construction personnel to correct the positioning device in time (by pushing the support frame 3 to the correct position and compacting the soil), so that the intersection of the two laser lines is once again directly above the center point of the pile foundation.

[0038] In summary, this embodiment can improve the stability of the positioning device and reduce the impact of factors such as mechanical equipment operating load, large drilling vibration, and foundation settlement on positioning. Moreover, once the positioning device tilts, the construction personnel can promptly detect and correct the positioning device, thereby restoring accurate positioning of the pile foundation borehole in a timely manner, effectively avoiding pile foundation borehole deviation, and ensuring the quality of borehole formation.

[0039] Example 2

[0040] The difference between this embodiment and Embodiment 1 is that: Figure 3 As shown, the positioning cylinder 1 has four upper extensions 110 at its top. Two upper extensions 110 are for mounting the laser emitter 9, and the other two upper extensions 110 are fixedly mounted with laser receivers 10 for receiving laser signals. An alarm II 11 is fixedly mounted on the positioning ear plate 2. Both the laser receiver 10 and the alarm II 11 are electrically connected to the controller 7. The laser receiver 10 transmits the detected signal to the controller 7, and the controller 7 controls the alarm II 11 to operate based on the received signal. In this embodiment, the alarm II 11 is an audible and visual alarm, and the color of the light it emits is different from the color of the light emitted by the alarm I 8.

[0041] In this embodiment, after the center point of the pile foundation is determined, a circular rod is vertically inserted at the center point. Then, the positioning cylinder 1 is fitted over the circular rod, and its position is adjusted so that the circular rod is located at the intersection of the two laser lines. At this point, the laser receiver 10 cannot receive the laser light, and the controller 7 controls the alarm II 11 to emit sound and light, indicating to the construction personnel that the positioning cylinder 1 is now coaxial with the center of the pile foundation, meaning the intersection of the two laser lines is directly above the center of the pile foundation. This avoids the need for construction personnel to visually inspect whether the circular rod is located at the intersection of the two laser lines.

[0042] Example 3

[0043] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that: Figure 4 As shown, the positioning cylinder 1 has three or more sets of limiting components 12 in the circumferential direction. The limiting components 12 are located below the positioning ear plate 2. Each set of limiting components 12 includes a radial threaded tube 121, an adjusting screw 122 and a scale 123. The radial threaded tube 121 passes through the circumferential wall of the positioning cylinder 1 and is arranged radially along the positioning cylinder 1. The adjusting screw 122 is threadedly connected to the radial threaded tube 121. The end of the scale 123 is welded to the outer circumferential wall of the positioning cylinder 1. The length direction of the scale 123 is parallel to the axial direction of the radial threaded tube 121.

[0044] In this embodiment, after the center point of the pile foundation is determined, a protective casing 13 is installed at the pile foundation location. The casing 13 is relatively deep and not easily moved. Thus, the positioning cylinder 1 is located outside the protective casing 13. The positioning device is installed according to the method described in Embodiment 1, that is, the intersection of the two laser lines is located directly above the center point of the pile foundation. Then, the construction personnel rotate the adjusting screws 122 so that one end of each adjusting screw 122 inside the positioning cylinder 1 abuts against the outer peripheral wall of the protective casing 13. This uses the protective casing 13 to limit the positioning cylinder 1, preventing radial movement of the positioning cylinder 1 during the positioning process, further improving the positioning accuracy of the positioning device, and reducing the need for correction work by the construction personnel.

[0045] In addition, construction workers can use the scale 123 to measure the amount of screwing in each adjusting screw 122, thereby determining the coaxiality between the casing 13 and the center of the pile foundation.

[0046] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness or practicality of this utility model. The specific embodiments described in the specification can be used to interpret the claims.

Claims

1. A pile foundation hole positioning device, characterized in that: The device includes a positioning cylinder with positioning ear plates on its circumference. Several support frames for supporting the positioning cylinder are connected to the positioning ear plates, and a horizontal sensor is fixedly installed on the positioning ear plates. Two laser emitters are provided on the inner circumferential wall of the positioning cylinder, and the laser lines emitted by the two laser emitters intersect perpendicularly.

2. The pile foundation hole positioning device according to claim 1, characterized in that: The positioning ear plate is fixedly equipped with a controller and an alarm I. Both the alarm I and the level sensor are electrically connected to the controller. The level sensor transmits the detected signal to the controller, and the controller controls the alarm I to work according to the received signal.

3. The pile foundation hole positioning device according to claim 1 or 2, characterized in that: The support frame includes a transverse support rod and a longitudinal support rod, with the bottom end of the longitudinal support rod having a pointed tip.

4. The pile foundation hole positioning device according to claim 3, characterized in that: The lateral support rod is a telescopic rod.

5. The pile foundation hole positioning device according to claim 2, characterized in that: Two laser receivers for receiving laser signals are fixedly installed on the inner wall of the positioning cylinder. An alarm II is fixedly installed on the positioning ear plate. Both the laser receivers and the alarm II are electrically connected to the controller. The laser receivers transmit the detected signals to the controller, and the controller controls the alarm II to work according to the received signals.

6. The pile foundation hole positioning device according to claim 1, characterized in that: The positioning cylinder has three or more sets of limiting components in the circumferential direction. Each set of limiting components includes a radial threaded tube and an adjusting screw. The radial threaded tube passes through the circumferential wall of the positioning cylinder and is arranged along the radial direction of the positioning cylinder. The adjusting screw is threadedly connected to the radial threaded tube.

7. The pile foundation hole positioning device according to claim 6, characterized in that: The limiting component also includes a scale, which is fixedly connected to the outer peripheral wall of the positioning cylinder and is arranged parallel to the radial threaded tube.

8. The pile foundation hole positioning device according to claim 1, characterized in that: The top of the positioning cylinder has two upper extensions, and two laser emitters are respectively installed on the two upper extensions.

9. The pile foundation hole positioning device according to claim 1, characterized in that: The support frame is detachably connected to the positioning ear plate.

10. The pile foundation hole positioning device according to claim 9, characterized in that: The positioning ear plate is provided with mounting plate I, and the support frame is provided with mounting plate II at one end near the positioning ear plate. Both mounting plate I and mounting plate II are provided with mounting holes for bolts to pass through.

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