Civil engineering pile foundation hole detection device

Abstract

The invention discloses a civil engineering pile foundation hole detection device, and belongs to the technical field of civil engineering, the civil engineering pile foundation hole detection device comprises a detection base, a lifting system used for lifting the detection base, and an orifice support frame used for supporting the lifting system, the detection base is a vertically arranged cylindrical structure, and the lower end of the detection base is provided with a convex ring; a rotating ring is coaxially and rotatably mounted on the outer side of the convex ring, a detector is mounted on the peripheral wall of the outer side of the rotating ring, and a rotation driving device for driving the rotating ring to rotate is mounted on the outer side of the detection base; multiple groups of radial supporting devices are uniformly mounted on the outer side of the detection base in the circumferential direction at intervals, supporting plates are connected to the outer ends of the radial supporting devices, and the multiple groups of radial supporting devices are matched to support the detection base; a laser transmitter is installed in the center of the upper end of the detection base, and a receiver corresponding to the laser transmitter is installed in the center of the orifice supporting frame. The device can improve the detection efficiency of the pile foundation hole.

Description

Technical Field

[0001] This invention belongs to the field of civil engineering technology, and specifically relates to a device for detecting pile foundation holes in civil engineering. Background Technology

[0002] Pile foundation holes are drilled to reinforce underground foundations and improve the load-bearing capacity and seismic resistance of building foundations. Before using pile foundation holes, they generally need to be inspected. This mainly involves inspecting the hole wall diameter or cracks at different depths, and using a cross-sectional diagram to show the internal structure of the pile foundation hole to facilitate subsequent judgment of its quality. The hole depth and bottom residue also need to be checked. Currently, pile foundation hole inspections typically use winches for lowering; however, when using detectors, to ensure inspection quality, it is necessary to wait for the detector to stabilize before proceeding with the inspection, which greatly reduces efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a device for detecting pile foundation holes in civil engineering, which can improve the detection efficiency of pile foundation holes.

[0004] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses a device for detecting pile foundation holes in civil engineering, comprising a detection base, a lifting system for lifting the detection base, and a borehole support frame for supporting the lifting system. The detection base is a vertically arranged cylindrical structure. A convex ring is installed at the lower end of the detection base, and a rotating ring is coaxially rotatably installed on the outer side of the convex ring. A detector is installed on the outer peripheral wall of the rotating ring. A rotation drive device for driving the rotating ring to rotate is also installed on the outer side of the detection base. Multiple sets of radial support devices are evenly spaced along the circumference of the outer side of the detection base. The outer ends of the radial support devices are connected to support plates. The multiple sets of radial support devices cooperate to support the detection base. A laser emitter is installed at the center of the upper end of the detection base, and a receiver corresponding to the laser emitter is installed at the center of the borehole support frame. The receiver is used to receive the signal emitted by the laser emitter and transmit the signal to a controller. The controller controls the extension length of each set of radial support devices, thereby adjusting the centering position of the detection base.

[0005] Furthermore, the outer side of the detection base and the inner side of the support plate are respectively provided with a first sliding groove and a second sliding groove. The radial support device includes multiple sets of first connecting rods and second connecting rods. The middle of the first connecting rods and the second connecting rods are hinged in a fork shape. The tail end of the first connecting rod of the first set is hinged to the head end of the second connecting rod of the second set, and the tail end of the first connecting rod of the second set is hinged to the head end of the second connecting rod of the second set. The first connecting rod on the side closer to the detection base is hinged to the detection base through a first rotating pin, and the second connecting rod on the side farther from the detection base is hinged to the support plate through a second rotating pin. The second connecting rod on the side closer to the detection base is connected to a first sliding pin, which is slidably disposed in the first sliding groove. The first connecting rod on the side farther from the detection base is connected to a second sliding pin, which is slidably disposed in the second sliding groove. A first hydraulic cylinder is installed in the first sliding groove, and the output end of the first hydraulic cylinder is connected to the first sliding pin.

[0006] Furthermore, a protrusion is formed on the inner side of the convex ring, which slides in conjunction with the first sliding groove. A second hydraulic cylinder is installed on the outer side of the detection base, and the output end of the second hydraulic cylinder is connected to the convex ring.

[0007] Furthermore, an internal gear ring is provided on the inner edge of the rotating ring, and the rotation drive device includes a first gear, a rotating shaft, a rotating shaft support, and a first motor. The first gear meshes with the internal gear ring, and the first gear is connected to the first motor through the rotating shaft. The rotating shaft and the rotating shaft support are rotatably engaged, and the rotating shaft support is installed on the rotating ring. The first motor is slidably engaged with the detection base.

[0008] Furthermore, a sleeve is fixed to the bottom of the detection base, and a detection rod is slidably installed inside the sleeve. The detection rod is connected to the detection base through a third hydraulic cylinder. A limit seat is formed at the lower end of the sleeve, and a first pressure sensor is installed on the lower side of the limit seat. A second pressure sensor is installed at the lower end of the detection rod.

[0009] Furthermore, the lifting system includes a winch, a rope, and support rods. The winch is fixed on the orifice support frame and is connected to the support rods via the ropes. Multiple sets of support rods are evenly spaced around the detection base.

[0010] Furthermore, the orifice support frame includes an outer ring, a central plate concentrically mounted at the center of the outer ring, and a connecting rod connecting the central plate and the outer ring. The receiver includes a plurality of photoresistors arrayed on the underside of the central plate.

[0011] Furthermore, several extension plates are evenly spaced on the lower side of the outer ring. The extension plates have a fan-shaped structure. One corner of the extension plate is hinged to the outer ring, and the other corner of the extension plate is hinged to the rotating ring through a third connecting rod. An external gear ring is provided on the outer side of the rotating ring. The external gear ring is hinged to the second gear. The second gear is connected to the output end of the second motor. The second motor is fixedly connected to the center plate.

[0012] The beneficial effects of this invention are as follows: This invention discloses a device for detecting pile foundation holes in civil engineering. After the detection base is lowered, it can be supported by multiple sets of radial support devices to stabilize it at the center of the pile foundation hole, avoiding the problem of inaccurate detection caused by device slippage and improving detection efficiency. By coordinating the laser emitter and receiver, the centering position can be adjusted, which can improve the quality of detection of the inner wall of the pile foundation hole. Attached Figure Description

[0013] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the detection device of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the detection device of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the orifice support frame. Figure 4 Schematic diagram of the test base Figure 1 ; Figure 5 Schematic diagram of the test base Figure 2 ; Figure 6 A cross-sectional view of the inspection base; Figure 7 for Figure 4 Enlarged view of point A in the middle; Figure 8 for Figure 5 Enlarged view of point B in the middle; Figure 9 for Figure 1 A magnified view of point C in the middle.

[0014] The following components are labeled in the attached diagram: 1. Detection base; 2. Lifting system; 3. Orifice support frame; 4. Convex ring; 5. Rotating ring; 6. Detector; 7. Support plate; 8. Laser emitter; 9. Receiver; 10. First slide groove; 11. Second slide groove; 12. First connecting rod; 13. Second connecting rod; 14. First rotating pin; 15. Second rotating pin; 16. First sliding pin; 17. Second sliding pin; 18. First hydraulic cylinder; 19. Protrusion; 20. Second hydraulic cylinder; 21. Internal gear ring; 22. First gear; 23. Rotating shaft; 24. Rotating shaft support; 25. First motor; 26. Sleeve; 27. Detection rod; 28. Third hydraulic cylinder; 29. ​​Limit seat; 30. First pressure sensor; 31. Second pressure sensor; 32. Winch; 33. Pull rope; 34. Support rod; 35. Outer ring; 36. Center plate; 37. Connecting rod; 38. Extension plate; 39. Third connecting rod; 40. Rotating ring; 41. External gear ring; 42. Second gear; 43. Second motor. Detailed Implementation

[0015] like Figures 1-9 As shown, the present invention discloses a civil engineering pile foundation hole detection device, including a detection base 1, a lifting system 2 for lifting the detection base 1, and a hole opening support frame 3 for supporting the lifting system 2. The hole opening support frame 3 is installed at the hole opening of the pile foundation hole and is used to support the entire device. The lifting system 2 is used to lift the detection base 1 and move the detection base 1 vertically to realize the detection of the entire hole wall of the pile foundation hole.

[0016] The detection base 1 is a vertically arranged cylindrical structure. A convex ring 4 is installed at the lower end of the detection base 1. The convex ring 4 is coaxial with the detection base 1. A rotating ring 5 is rotatably installed on the outer side of the convex ring 4. A detector 6 is installed on the outer peripheral wall of the rotating ring 5. The detector 6 is an ultrasonic detector. A rotation drive device for driving the rotating ring 5 to rotate is also installed on the outer side of the detection base 1. The rotation drive device drives the rotating ring 5 to rotate, and the rotating ring 5 drives the detector 6 to rotate, realizing 360° detection in the height direction.

[0017] Three sets of radial support devices are evenly spaced along the circumference of the outer side of the detection base 1, with a 120° interval between adjacent sets. Support plates 7 are connected to the outer ends of the radial support devices, and the support plates 7 contact the borehole wall of the pile foundation. The borehole wall provides a reaction force, thus achieving support. Multiple sets of radial support devices work together to support the detection base 1. A laser emitter 8 is installed at the upper center of the detection base 1, and a receiver 9 corresponding to the laser emitter 8 is installed at the center of the borehole support frame 3. The receiver 9 receives the signal emitted by the laser emitter 8 and transmits the signal to the controller. The controller controls the extension length of each set of radial support devices, thereby adjusting the centering position of the detection base 1. It is understood that adjusting the extension length of each set of radial support devices can adjust the planar position of the detection base 1. The current position is confirmed by the laser emitter 8 and the receiver 9. The above technology belongs to the prior art and can be understood by those skilled in the art.

[0018] In the device disclosed in this invention, after the detection base 1 is lowered, it can be supported by multiple sets of radial support devices to stabilize it at the center of the pile hole, avoiding the problem of inaccurate detection caused by device slippage and improving detection efficiency. Through the cooperation of the laser emitter 8 and receiver 9, the centering position can be adjusted, improving the quality of detection of the inner wall of the pile hole.

[0019] In this embodiment, a first groove 10 and a second groove 11 are respectively provided on the outer side of the detection base 1 and the inner side of the support plate 7. The cross-sections of the first groove 10 and the second groove 11 are both T-shaped, which can serve as a limiting function. The radial support device includes two sets of first connecting rods 12 and second connecting rods 13. The middle of the first connecting rods 12 and the second connecting rods 13 are hinged in a fork shape, and the two can rotate around the middle hinge point. In this configuration, the tail end of the first connecting rod 12 of the first group is hinged to the head end of the second connecting rod 13 of the second group, and the tail end of the second connecting rod 13 of the first group is hinged to the head end of the first connecting rod 12 of the second group. The first connecting rod 12 on the side closer to the detection base 1 is hinged to the detection base 1 via the first rotating pin 14, and the second connecting rod 13 on the side farther from the detection base 1 is hinged to the support plate 7 via the second rotating pin 15. The second connecting rod 13 on the side closer to the detection base 1 is connected to the first sliding pin 16, which is slidably disposed in the first slide groove 10. The first connecting rod 12 on the side farther from the detection base 1 is connected to the second sliding pin 17, which is slidably disposed in the second slide groove 11. A first hydraulic cylinder 18 is installed in the first slide groove 10, and the output end of the first hydraulic cylinder 18 is connected to the first sliding pin 16. When the first hydraulic cylinder 18 extends or retracts, it can drive the first sliding pin 16 to slide within the first slide groove 10, thereby adjusting the distance between the first sliding pin 16 and the first rotating pin 14. Since the distance between the first sliding pin 16 and the first rotating pin 14 changes, the radial extension length of the radial support device can be adjusted.

[0020] In this embodiment, a protrusion 19 is formed on the inner side of the convex ring 4. The protrusion 19 slides in conjunction with the first sliding groove 10, allowing the convex ring 4 to also move vertically. A second hydraulic cylinder 20 is installed on the outer side of the detection base 1, and the output end of the second hydraulic cylinder 20 is connected to the convex ring 4. The second hydraulic cylinder 20 provides power, which can drive the convex ring 4 to move a certain distance vertically. Without having to loosen the radial support device again, the detection of the inner wall of the pile hole in a certain height direction can be achieved, improving the efficiency and accuracy of the detection.

[0021] In this embodiment, an internal gear ring 21 is provided on the inner edge of the rotating ring 5. The rotation drive device includes a first gear 22, a rotating shaft 23, a rotating shaft support 24, and a first motor 25. The first gear 22 meshes with the internal gear ring 21. The first gear 22 is connected to the first motor 25 through the rotating shaft 23. The rotating shaft 23 and the rotating shaft support 24 are rotatably engaged. The rotating shaft support 24 is mounted on the rotating ring 5. The first motor 25 is slidably engaged with the detection base 1. Specifically, a vertical slot is provided on the outer side of the first motor 25, and a vertical ridge that engages with the slot is provided on the detection base 1, which ensures the stability of the vertical sliding engagement. When the rotating ring 5 moves up and down, the rotating shaft support 24 can drive the rotating shaft 23 and the first motor 25 connected to it to move up and down, while ensuring that the first gear 22 can always maintain engagement with the internal gear ring 21 of the rotating ring 5.

[0022] In this embodiment, a sleeve 26 is fixed to the bottom of the detection base 1, and a detection rod 27 is slidably installed inside the sleeve 26. The detection rod 27 is connected to the detection base 1 via a third hydraulic cylinder 28. A limiting seat 29 is formed at the lower end of the sleeve 26, and a first pressure sensor 30 is installed on the lower side of the limiting seat 29. A second pressure sensor 31 is installed at the lower end of the detection rod 27. When the detection base 1 begins to descend, the detection rod 27 retracts into the inner side of the sleeve 26, with its lower end basically flush with the limiting seat 29. When the first pressure sensor 30 senses a first pressure threshold, it indicates that the first pressure sensor 30 of the limiting seat 29 is in contact with the upper surface of the residue at the bottom of the pile hole. At this time, the detection base 1 stops descending and the second hydraulic cylinder 20 extends. When the second pressure sensor 31 senses a second pressure threshold that is larger than the first pressure threshold, the second hydraulic cylinder 20 stops. The extension length of the second hydraulic cylinder 20 at this time is the thickness of the residue at the bottom of the pile hole. Using the above method, the thickness of the residue at the bottom of the pile hole can be detected more comprehensively. Of course, the initial position of the detection rod 27 can be set as needed.

[0023] In this embodiment, the lifting system 2 includes a winch 32, a pull rope 33, and support rods 34. The winch 32 is fixed on the orifice support frame 3, and the winch 32 is connected to the support rods 34 through the pull rope 33. The three sets of support rods 34 are evenly spaced and installed around the circumference of the detection base 1, which can ensure the stability of the detection base 1 when it is lowered.

[0024] In this embodiment, the orifice support frame 3 includes an outer ring 35, a central plate 36 concentrically mounted at the center of the outer ring 35, and a connecting rod 37 connecting the central plate 36 and the outer ring 35. The receiver 9 includes a plurality of photoresistors arrayed on the lower side of the central plate 36. The position of the detection base 1 relative to the central plate 36 can be determined by sensing the photoresistors. The method of determining the position is prior art and can be understood by those skilled in the art.

[0025] In this embodiment, several extension plates 38 are evenly spaced on the lower side of the outer ring 35. The extension plates 38 have a fan-shaped structure. One corner of the extension plate 38 is hinged to the outer ring 35, and the other corner is hinged to the rotating ring 40 through a third connecting rod 39. An external gear ring 41 is provided on the outer side of the rotating ring 40. The external gear ring 41 is hinged to a second gear 42. The second gear 42 is connected to the output end of the second motor 43, and the second motor 43 is fixedly connected to the center plate 36. The extension plates 38 can be placed on a pre-set step at the opening of the pile foundation hole. By setting the extension plates 38, the outer diameter of the outer ring 35 can be expanded. The second motor 43 is a stepper motor. When it is expanded to a suitable position, it can be locked. By unfolding the extension plates 38, it can be adapted to pile foundation holes with different inner diameters. Of course, the rotating ring 40 can also be driven by a hydraulic cylinder. By driving the output axis of the hydraulic cylinder along the circumference of the rotating ring 40, the rotating ring 40 can be driven to rotate. Those skilled in the art will understand this.

[0026] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A device for detecting pile foundation holes in civil engineering, characterized in that: The system includes a detection base, a lifting system for lifting the detection base, and an orifice support frame for supporting the lifting system. The detection base is a vertically oriented cylindrical structure. A convex ring is installed at the lower end of the detection base, and a rotating ring is coaxially rotatably installed on the outer side of the convex ring. A detector is installed on the outer peripheral wall of the rotating ring. A rotation drive device for driving the rotating ring to rotate is also installed on the outer side of the detection base. Multiple sets of radial support devices are evenly spaced along the circumference of the outer side of the detection base. The outer ends of the radial support devices are connected to support plates. The multiple sets of radial support devices work together to support the detection base. A laser emitter is installed at the center of the upper end of the detection base, and a receiver corresponding to the laser emitter is installed at the center of the orifice support frame. The receiver is used to receive the signal emitted by the laser emitter and transmit the signal to a controller. The controller controls the extension length of each set of radial support devices, thereby adjusting the centering position of the detection base.

2. The device for detecting pile foundation holes in civil engineering according to claim 1, characterized in that: The outer side of the testing base and the inner side of the support plate are respectively provided with a first sliding groove and a second sliding groove. The radial support device includes multiple sets of first connecting rods and second connecting rods. The middle of the first connecting rods and the second connecting rods are hinged in a fork shape. The tail end of the first connecting rod of the first set is hinged to the head end of the second connecting rod of the second set, and the tail end of the first connecting rod of the second set is hinged to the head end of the second connecting rod of the second set. The first connecting rod on the side closer to the testing base is hinged to the testing base through a first rotating pin. The second connecting rod on the side farther from the testing base is hinged to the support plate through a second rotating pin. The second connecting rod on the side closer to the testing base is connected to a first sliding pin, which is slidably disposed in the first sliding groove. The first connecting rod on the side farther from the testing base is connected to a second sliding pin, which is slidably disposed in the second sliding groove. A first hydraulic cylinder is installed in the first sliding groove, and the output end of the first hydraulic cylinder is connected to the first sliding pin.

3. The device for detecting pile foundation holes in civil engineering according to claim 2, characterized in that: A protrusion is formed on the inner side of the convex ring, and the protrusion slides in conjunction with the first sliding groove. A second hydraulic cylinder is installed on the outer side of the detection base, and the output end of the second hydraulic cylinder is connected to the convex ring.

4. The device for detecting pile foundation holes in civil engineering according to claim 3, characterized in that: An internal gear ring is provided on the inner edge of the rotating ring. The rotation drive device includes a first gear, a rotating shaft, a rotating shaft support, and a first motor. The first gear meshes with the internal gear ring. The first gear is connected to the first motor through the rotating shaft. The rotating shaft and the rotating shaft support are rotatably engaged. The rotating shaft support is mounted on the rotating ring. The first motor is slidably engaged with the detection base.

5. The device for detecting pile foundation holes in civil engineering according to claim 1, characterized in that: A sleeve is fixed to the bottom of the detection base, and a detection rod is slidably installed inside the sleeve. The detection rod is connected to the detection base through a third hydraulic cylinder. A limit seat is formed at the lower end of the sleeve. A first pressure sensor is installed on the lower side of the limit seat, and a second pressure sensor is installed at the lower end of the detection rod.

6. The device for detecting pile foundation holes in civil engineering according to claim 1, characterized in that: The lifting system includes a winch, a rope, and support rods. The winch is fixed on the orifice support frame and is connected to the support rods via the ropes. Multiple sets of support rods are evenly spaced around the detection base.

7. A device for detecting pile foundation holes in civil engineering according to any one of claims 1-6, characterized in that: The orifice support frame includes an outer ring, a center plate concentrically mounted at the center of the outer ring, and a connecting rod connecting the center plate and the outer ring. The receiver includes several photoresistors arrayed on the underside of the center plate.

8. The device for detecting pile foundation holes in civil engineering according to claim 7, characterized in that: Several extension plates are evenly spaced on the lower side of the outer ring. The extension plates have a fan-shaped structure. One corner of the extension plate is hinged to the outer ring, and the other corner of the extension plate is hinged to the rotating ring through a third connecting rod. An external gear ring is provided on the outer side of the rotating ring. The external gear ring is hinged to the second gear. The second gear is connected to the output end of the second motor. The second motor is fixedly connected to the center plate.

Images